30728750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:127

約数の個数: 80

約数和(自身を含む): 65079168

約数和(自身を除く): 34350418

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 61, 62, 65, 122, 125, 130, 155, 250, 305, 310, 325, 403, 610, 625, 650, 775, 793, 806, 1250, 1525, 1550, 1586, 1625, 1891, 2015, 3050, 3250, 3782, 3875, 3965, 4030, 7625, 7750, 7930, 8125, 9455, 10075, 15250, 16250, 18910, 19375, 19825, 20150, 24583, 38125, 38750, 39650, 47275, 49166, 50375, 76250, 94550, 99125, 100750, 122915, 198250, 236375, 245830, 251875, 472750, 495625, 503750, 614575, 991250, 1181875, 1229150, 2363750, 3072875, 6145750, 15364375, 30728750]

約数ペア:

[(1, 30728750), (2, 15364375), (5, 6145750), (10, 3072875), (13, 2363750), (25, 1229150), (26, 1181875), (31, 991250), (50, 614575), (61, 503750), (62, 495625), (65, 472750), (122, 251875), (125, 245830), (130, 236375), (155, 198250), (250, 122915), (305, 100750), (310, 99125), (325, 94550), (403, 76250), (610, 50375), (625, 49166), (650, 47275), (775, 39650), (793, 38750), (806, 38125), (1250, 24583), (1525, 20150), (1550, 19825), (1586, 19375), (1625, 18910), (1891, 16250), (2015, 15250), (3050, 10075), (3250, 9455), (3782, 8125), (3875, 7930), (3965, 7750), (4030, 7625)]