64920015

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 121806720

約数和(自身を除く): 56886705

約数列:

[1, 3, 5, 9, 15, 27, 37, 41, 45, 111, 123, 135, 185, 205, 317, 333, 369, 555, 615, 951, 999, 1107, 1517, 1585, 1665, 1845, 2853, 4551, 4755, 4995, 5535, 7585, 8559, 11729, 12997, 13653, 14265, 22755, 35187, 38991, 40959, 42795, 58645, 64985, 68265, 105561, 116973, 175935, 194955, 204795, 316683, 350919, 480889, 527805, 584865, 1442667, 1583415, 1754595, 2404445, 4328001, 7213335, 12984003, 21640005, 64920015]

約数ペア:

[(1, 64920015), (3, 21640005), (5, 12984003), (9, 7213335), (15, 4328001), (27, 2404445), (37, 1754595), (41, 1583415), (45, 1442667), (111, 584865), (123, 527805), (135, 480889), (185, 350919), (205, 316683), (317, 204795), (333, 194955), (369, 175935), (555, 116973), (615, 105561), (951, 68265), (999, 64985), (1107, 58645), (1517, 42795), (1585, 40959), (1665, 38991), (1845, 35187), (2853, 22755), (4551, 14265), (4755, 13653), (4995, 12997), (5535, 11729), (7585, 8559)]