39975975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 78536640

約数和(自身を除く): 38560665

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 79, 117, 173, 195, 225, 237, 325, 395, 519, 585, 711, 865, 975, 1027, 1185, 1557, 1975, 2249, 2595, 2925, 3081, 3555, 4325, 5135, 5925, 6747, 7785, 9243, 11245, 12975, 13667, 15405, 17775, 20241, 25675, 33735, 38925, 41001, 46215, 56225, 68335, 77025, 101205, 123003, 168675, 177671, 205005, 231075, 341675, 506025, 533013, 615015, 888355, 1025025, 1599039, 2665065, 3075075, 4441775, 7995195, 13325325, 39975975]

約数ペア:

[(1, 39975975), (3, 13325325), (5, 7995195), (9, 4441775), (13, 3075075), (15, 2665065), (25, 1599039), (39, 1025025), (45, 888355), (65, 615015), (75, 533013), (79, 506025), (117, 341675), (173, 231075), (195, 205005), (225, 177671), (237, 168675), (325, 123003), (395, 101205), (519, 77025), (585, 68335), (711, 56225), (865, 46215), (975, 41001), (1027, 38925), (1185, 33735), (1557, 25675), (1975, 20241), (2249, 17775), (2595, 15405), (2925, 13667), (3081, 12975), (3555, 11245), (4325, 9243), (5135, 7785), (5925, 6747)]