128431260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^2$

素因数の和:145

約数の個数: 216

約数和(自身を含む): 443635920

約数和(自身を除く): 315204660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 47, 51, 57, 60, 68, 76, 85, 90, 94, 95, 102, 114, 141, 153, 170, 171, 180, 188, 190, 204, 228, 235, 255, 282, 285, 306, 323, 340, 342, 380, 423, 470, 510, 564, 570, 612, 646, 684, 705, 765, 799, 846, 855, 893, 940, 969, 1020, 1140, 1292, 1410, 1530, 1598, 1615, 1692, 1710, 1786, 1938, 2115, 2209, 2397, 2679, 2820, 2907, 3060, 3196, 3230, 3420, 3572, 3876, 3995, 4230, 4418, 4465, 4794, 4845, 5358, 5814, 6460, 6627, 7191, 7990, 8037, 8460, 8836, 8930, 9588, 9690, 10716, 11045, 11628, 11985, 13254, 13395, 14382, 14535, 15181, 15980, 16074, 17860, 19380, 19881, 22090, 23970, 26508, 26790, 28764, 29070, 30362, 32148, 33135, 35955, 37553, 39762, 40185, 41971, 44180, 45543, 47940, 53580, 58140, 60724, 66270, 71910, 75106, 75905, 79524, 80370, 83942, 91086, 99405, 112659, 125913, 132540, 136629, 143820, 150212, 151810, 160740, 167884, 182172, 187765, 198810, 209855, 225318, 227715, 251826, 273258, 303620, 337977, 375530, 377739, 397620, 419710, 450636, 455430, 503652, 546516, 563295, 629565, 675954, 683145, 713507, 751060, 755478, 839420, 910860, 1126590, 1259130, 1351908, 1366290, 1427014, 1510956, 1689885, 1888695, 2140521, 2253180, 2518260, 2732580, 2854028, 3379770, 3567535, 3777390, 4281042, 6421563, 6759540, 7135070, 7554780, 8562084, 10702605, 12843126, 14270140, 21405210, 25686252, 32107815, 42810420, 64215630, 128431260]

約数ペア:

[(1, 128431260), (2, 64215630), (3, 42810420), (4, 32107815), (5, 25686252), (6, 21405210), (9, 14270140), (10, 12843126), (12, 10702605), (15, 8562084), (17, 7554780), (18, 7135070), (19, 6759540), (20, 6421563), (30, 4281042), (34, 3777390), (36, 3567535), (38, 3379770), (45, 2854028), (47, 2732580), (51, 2518260), (57, 2253180), (60, 2140521), (68, 1888695), (76, 1689885), (85, 1510956), (90, 1427014), (94, 1366290), (95, 1351908), (102, 1259130), (114, 1126590), (141, 910860), (153, 839420), (170, 755478), (171, 751060), (180, 713507), (188, 683145), (190, 675954), (204, 629565), (228, 563295), (235, 546516), (255, 503652), (282, 455430), (285, 450636), (306, 419710), (323, 397620), (340, 377739), (342, 375530), (380, 337977), (423, 303620), (470, 273258), (510, 251826), (564, 227715), (570, 225318), (612, 209855), (646, 198810), (684, 187765), (705, 182172), (765, 167884), (799, 160740), (846, 151810), (855, 150212), (893, 143820), (940, 136629), (969, 132540), (1020, 125913), (1140, 112659), (1292, 99405), (1410, 91086), (1530, 83942), (1598, 80370), (1615, 79524), (1692, 75905), (1710, 75106), (1786, 71910), (1938, 66270), (2115, 60724), (2209, 58140), (2397, 53580), (2679, 47940), (2820, 45543), (2907, 44180), (3060, 41971), (3196, 40185), (3230, 39762), (3420, 37553), (3572, 35955), (3876, 33135), (3995, 32148), (4230, 30362), (4418, 29070), (4465, 28764), (4794, 26790), (4845, 26508), (5358, 23970), (5814, 22090), (6460, 19881), (6627, 19380), (7191, 17860), (7990, 16074), (8037, 15980), (8460, 15181), (8836, 14535), (8930, 14382), (9588, 13395), (9690, 13254), (10716, 11985), (11045, 11628)]