81041220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{587}}^1$

素因数の和:674

約数の個数: 144

約数和(自身を含む): 269680320

約数和(自身を除く): 188639100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 59, 60, 65, 78, 90, 117, 118, 130, 156, 177, 180, 195, 234, 236, 260, 295, 354, 390, 468, 531, 585, 587, 590, 708, 767, 780, 885, 1062, 1170, 1174, 1180, 1534, 1761, 1770, 2124, 2301, 2340, 2348, 2655, 2935, 3068, 3522, 3540, 3835, 4602, 5283, 5310, 5870, 6903, 7044, 7631, 7670, 8805, 9204, 10566, 10620, 11505, 11740, 13806, 15262, 15340, 17610, 21132, 22893, 23010, 26415, 27612, 30524, 34515, 34633, 35220, 38155, 45786, 46020, 52830, 68679, 69030, 69266, 76310, 91572, 103899, 105660, 114465, 137358, 138060, 138532, 152620, 173165, 207798, 228930, 274716, 311697, 343395, 346330, 415596, 450229, 457860, 519495, 623394, 686790, 692660, 900458, 1038990, 1246788, 1350687, 1373580, 1558485, 1800916, 2077980, 2251145, 2701374, 3116970, 4052061, 4502290, 5402748, 6233940, 6753435, 8104122, 9004580, 13506870, 16208244, 20260305, 27013740, 40520610, 81041220]

約数ペア:

[(1, 81041220), (2, 40520610), (3, 27013740), (4, 20260305), (5, 16208244), (6, 13506870), (9, 9004580), (10, 8104122), (12, 6753435), (13, 6233940), (15, 5402748), (18, 4502290), (20, 4052061), (26, 3116970), (30, 2701374), (36, 2251145), (39, 2077980), (45, 1800916), (52, 1558485), (59, 1373580), (60, 1350687), (65, 1246788), (78, 1038990), (90, 900458), (117, 692660), (118, 686790), (130, 623394), (156, 519495), (177, 457860), (180, 450229), (195, 415596), (234, 346330), (236, 343395), (260, 311697), (295, 274716), (354, 228930), (390, 207798), (468, 173165), (531, 152620), (585, 138532), (587, 138060), (590, 137358), (708, 114465), (767, 105660), (780, 103899), (885, 91572), (1062, 76310), (1170, 69266), (1174, 69030), (1180, 68679), (1534, 52830), (1761, 46020), (1770, 45786), (2124, 38155), (2301, 35220), (2340, 34633), (2348, 34515), (2655, 30524), (2935, 27612), (3068, 26415), (3522, 23010), (3540, 22893), (3835, 21132), (4602, 17610), (5283, 15340), (5310, 15262), (5870, 13806), (6903, 11740), (7044, 11505), (7631, 10620), (7670, 10566), (8805, 9204)]