15721497180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^2\times {\mathrm{2081}}^1$

素因数の和:2209

約数の個数: 216

約数和(自身を含む): 51313888080

約数和(自身を除く): 35592390900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 47, 57, 60, 76, 90, 94, 95, 114, 141, 171, 180, 188, 190, 228, 235, 282, 285, 342, 380, 423, 470, 564, 570, 684, 705, 846, 855, 893, 940, 1140, 1410, 1692, 1710, 1786, 2081, 2115, 2209, 2679, 2820, 3420, 3572, 4162, 4230, 4418, 4465, 5358, 6243, 6627, 8037, 8324, 8460, 8836, 8930, 10405, 10716, 11045, 12486, 13254, 13395, 16074, 17860, 18729, 19881, 20810, 22090, 24972, 26508, 26790, 31215, 32148, 33135, 37458, 39539, 39762, 40185, 41620, 41971, 44180, 53580, 62430, 66270, 74916, 79078, 79524, 80370, 83942, 93645, 97807, 99405, 118617, 124860, 125913, 132540, 158156, 160740, 167884, 187290, 195614, 197695, 198810, 209855, 237234, 251826, 293421, 355851, 374580, 377739, 391228, 395390, 397620, 419710, 474468, 489035, 503652, 586842, 593085, 629565, 711702, 755478, 790780, 839420, 880263, 978070, 1173684, 1186170, 1259130, 1423404, 1467105, 1510956, 1760526, 1779255, 1858333, 1888695, 1956140, 2372340, 2518260, 2934210, 3521052, 3558510, 3716666, 3777390, 4401315, 4596929, 5574999, 5868420, 7117020, 7433332, 7554780, 8802630, 9193858, 9291665, 11149998, 13790787, 16724997, 17605260, 18387716, 18583330, 22299996, 22984645, 27581574, 27874995, 33449994, 37166660, 41372361, 45969290, 55163148, 55749990, 66899988, 68953935, 82744722, 83624985, 87341651, 91938580, 111499980, 137907870, 165489444, 167249970, 174683302, 206861805, 262024953, 275815740, 334499940, 349366604, 413723610, 436708255, 524049906, 786074859, 827447220, 873416510, 1048099812, 1310124765, 1572149718, 1746833020, 2620249530, 3144299436, 3930374295, 5240499060, 7860748590, 15721497180]

約数ペア:

[(1, 15721497180), (2, 7860748590), (3, 5240499060), (4, 3930374295), (5, 3144299436), (6, 2620249530), (9, 1746833020), (10, 1572149718), (12, 1310124765), (15, 1048099812), (18, 873416510), (19, 827447220), (20, 786074859), (30, 524049906), (36, 436708255), (38, 413723610), (45, 349366604), (47, 334499940), (57, 275815740), (60, 262024953), (76, 206861805), (90, 174683302), (94, 167249970), (95, 165489444), (114, 137907870), (141, 111499980), (171, 91938580), (180, 87341651), (188, 83624985), (190, 82744722), (228, 68953935), (235, 66899988), (282, 55749990), (285, 55163148), (342, 45969290), (380, 41372361), (423, 37166660), (470, 33449994), (564, 27874995), (570, 27581574), (684, 22984645), (705, 22299996), (846, 18583330), (855, 18387716), (893, 17605260), (940, 16724997), (1140, 13790787), (1410, 11149998), (1692, 9291665), (1710, 9193858), (1786, 8802630), (2081, 7554780), (2115, 7433332), (2209, 7117020), (2679, 5868420), (2820, 5574999), (3420, 4596929), (3572, 4401315), (4162, 3777390), (4230, 3716666), (4418, 3558510), (4465, 3521052), (5358, 2934210), (6243, 2518260), (6627, 2372340), (8037, 1956140), (8324, 1888695), (8460, 1858333), (8836, 1779255), (8930, 1760526), (10405, 1510956), (10716, 1467105), (11045, 1423404), (12486, 1259130), (13254, 1186170), (13395, 1173684), (16074, 978070), (17860, 880263), (18729, 839420), (19881, 790780), (20810, 755478), (22090, 711702), (24972, 629565), (26508, 593085), (26790, 586842), (31215, 503652), (32148, 489035), (33135, 474468), (37458, 419710), (39539, 397620), (39762, 395390), (40185, 391228), (41620, 377739), (41971, 374580), (44180, 355851), (53580, 293421), (62430, 251826), (66270, 237234), (74916, 209855), (79078, 198810), (79524, 197695), (80370, 195614), (83942, 187290), (93645, 167884), (97807, 160740), (99405, 158156), (118617, 132540), (124860, 125913)]