61457500

素因数分解:

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

素因数の和:129

約数の個数: 120

約数和(自身を含む): 151851392

約数和(自身を除く): 90393892

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 61, 62, 65, 100, 122, 124, 125, 130, 155, 244, 250, 260, 305, 310, 325, 403, 500, 610, 620, 625, 650, 775, 793, 806, 1220, 1250, 1300, 1525, 1550, 1586, 1612, 1625, 1891, 2015, 2500, 3050, 3100, 3172, 3250, 3782, 3875, 3965, 4030, 6100, 6500, 7564, 7625, 7750, 7930, 8060, 8125, 9455, 10075, 15250, 15500, 15860, 16250, 18910, 19375, 19825, 20150, 24583, 30500, 32500, 37820, 38125, 38750, 39650, 40300, 47275, 49166, 50375, 76250, 77500, 79300, 94550, 98332, 99125, 100750, 122915, 152500, 189100, 198250, 201500, 236375, 245830, 251875, 396500, 472750, 491660, 495625, 503750, 614575, 945500, 991250, 1007500, 1181875, 1229150, 1982500, 2363750, 2458300, 3072875, 4727500, 6145750, 12291500, 15364375, 30728750, 61457500]

約数ペア:

[(1, 61457500), (2, 30728750), (4, 15364375), (5, 12291500), (10, 6145750), (13, 4727500), (20, 3072875), (25, 2458300), (26, 2363750), (31, 1982500), (50, 1229150), (52, 1181875), (61, 1007500), (62, 991250), (65, 945500), (100, 614575), (122, 503750), (124, 495625), (125, 491660), (130, 472750), (155, 396500), (244, 251875), (250, 245830), (260, 236375), (305, 201500), (310, 198250), (325, 189100), (403, 152500), (500, 122915), (610, 100750), (620, 99125), (625, 98332), (650, 94550), (775, 79300), (793, 77500), (806, 76250), (1220, 50375), (1250, 49166), (1300, 47275), (1525, 40300), (1550, 39650), (1586, 38750), (1612, 38125), (1625, 37820), (1891, 32500), (2015, 30500), (2500, 24583), (3050, 20150), (3100, 19825), (3172, 19375), (3250, 18910), (3782, 16250), (3875, 15860), (3965, 15500), (4030, 15250), (6100, 10075), (6500, 9455), (7564, 8125), (7625, 8060), (7750, 7930)]