71618980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 167932800

約数和(自身を除く): 96313820

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 67, 76, 95, 97, 116, 134, 145, 190, 194, 268, 290, 335, 380, 388, 485, 551, 580, 670, 970, 1102, 1273, 1340, 1843, 1940, 1943, 2204, 2546, 2755, 2813, 3686, 3886, 5092, 5510, 5626, 6365, 6499, 7372, 7772, 9215, 9715, 11020, 11252, 12730, 12998, 14065, 18430, 19430, 25460, 25996, 28130, 32495, 36860, 36917, 38860, 53447, 56260, 64990, 73834, 106894, 123481, 129980, 147668, 184585, 188471, 213788, 246962, 267235, 369170, 376942, 493924, 534470, 617405, 738340, 753884, 942355, 1068940, 1234810, 1884710, 2469620, 3580949, 3769420, 7161898, 14323796, 17904745, 35809490, 71618980]

約数ペア:

[(1, 71618980), (2, 35809490), (4, 17904745), (5, 14323796), (10, 7161898), (19, 3769420), (20, 3580949), (29, 2469620), (38, 1884710), (58, 1234810), (67, 1068940), (76, 942355), (95, 753884), (97, 738340), (116, 617405), (134, 534470), (145, 493924), (190, 376942), (194, 369170), (268, 267235), (290, 246962), (335, 213788), (380, 188471), (388, 184585), (485, 147668), (551, 129980), (580, 123481), (670, 106894), (970, 73834), (1102, 64990), (1273, 56260), (1340, 53447), (1843, 38860), (1940, 36917), (1943, 36860), (2204, 32495), (2546, 28130), (2755, 25996), (2813, 25460), (3686, 19430), (3886, 18430), (5092, 14065), (5510, 12998), (5626, 12730), (6365, 11252), (6499, 11020), (7372, 9715), (7772, 9215)]