20121385140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97459}}^1$

素因数の和:97542

約数の個数: 144

約数和(自身を含む): 64707202560

約数和(自身を除く): 44585817420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 37, 45, 60, 62, 74, 90, 93, 111, 124, 148, 155, 180, 185, 186, 222, 279, 310, 333, 370, 372, 444, 465, 555, 558, 620, 666, 740, 930, 1110, 1116, 1147, 1332, 1395, 1665, 1860, 2220, 2294, 2790, 3330, 3441, 4588, 5580, 5735, 6660, 6882, 10323, 11470, 13764, 17205, 20646, 22940, 34410, 41292, 51615, 68820, 97459, 103230, 194918, 206460, 292377, 389836, 487295, 584754, 877131, 974590, 1169508, 1461885, 1754262, 1949180, 2923770, 3021229, 3508524, 3605983, 4385655, 5847540, 6042458, 7211966, 8771310, 9063687, 10817949, 12084916, 14423932, 15106145, 17542620, 18029915, 18127374, 21635898, 27191061, 30212290, 32453847, 36059830, 36254748, 43271796, 45318435, 54089745, 54382122, 60424580, 64907694, 72119660, 90636870, 108179490, 108764244, 111785473, 129815388, 135955305, 162269235, 181273740, 216358980, 223570946, 271910610, 324538470, 335356419, 447141892, 543821220, 558927365, 649076940, 670712838, 1006069257, 1117854730, 1341425676, 1676782095, 2012138514, 2235709460, 3353564190, 4024277028, 5030346285, 6707128380, 10060692570, 20121385140]

約数ペア:

[(1, 20121385140), (2, 10060692570), (3, 6707128380), (4, 5030346285), (5, 4024277028), (6, 3353564190), (9, 2235709460), (10, 2012138514), (12, 1676782095), (15, 1341425676), (18, 1117854730), (20, 1006069257), (30, 670712838), (31, 649076940), (36, 558927365), (37, 543821220), (45, 447141892), (60, 335356419), (62, 324538470), (74, 271910610), (90, 223570946), (93, 216358980), (111, 181273740), (124, 162269235), (148, 135955305), (155, 129815388), (180, 111785473), (185, 108764244), (186, 108179490), (222, 90636870), (279, 72119660), (310, 64907694), (333, 60424580), (370, 54382122), (372, 54089745), (444, 45318435), (465, 43271796), (555, 36254748), (558, 36059830), (620, 32453847), (666, 30212290), (740, 27191061), (930, 21635898), (1110, 18127374), (1116, 18029915), (1147, 17542620), (1332, 15106145), (1395, 14423932), (1665, 12084916), (1860, 10817949), (2220, 9063687), (2294, 8771310), (2790, 7211966), (3330, 6042458), (3441, 5847540), (4588, 4385655), (5580, 3605983), (5735, 3508524), (6660, 3021229), (6882, 2923770), (10323, 1949180), (11470, 1754262), (13764, 1461885), (17205, 1169508), (20646, 974590), (22940, 877131), (34410, 584754), (41292, 487295), (51615, 389836), (68820, 292377), (97459, 206460), (103230, 194918)]