65487500

素因数分解:

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

素因数の和:86

約数の個数: 108

約数和(自身を含む): 160114752

約数和(自身を除く): 94627252

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 125, 130, 155, 169, 250, 260, 310, 325, 338, 403, 500, 620, 625, 650, 676, 775, 806, 845, 1250, 1300, 1550, 1612, 1625, 1690, 2015, 2500, 3100, 3125, 3250, 3380, 3875, 4030, 4225, 5239, 6250, 6500, 7750, 8060, 8125, 8450, 10075, 10478, 12500, 15500, 16250, 16900, 19375, 20150, 20956, 21125, 26195, 32500, 38750, 40300, 40625, 42250, 50375, 52390, 77500, 81250, 84500, 96875, 100750, 104780, 105625, 130975, 162500, 193750, 201500, 211250, 251875, 261950, 387500, 422500, 503750, 523900, 528125, 654875, 1007500, 1056250, 1259375, 1309750, 2112500, 2518750, 2619500, 3274375, 5037500, 6548750, 13097500, 16371875, 32743750, 65487500]

約数ペア:

[(1, 65487500), (2, 32743750), (4, 16371875), (5, 13097500), (10, 6548750), (13, 5037500), (20, 3274375), (25, 2619500), (26, 2518750), (31, 2112500), (50, 1309750), (52, 1259375), (62, 1056250), (65, 1007500), (100, 654875), (124, 528125), (125, 523900), (130, 503750), (155, 422500), (169, 387500), (250, 261950), (260, 251875), (310, 211250), (325, 201500), (338, 193750), (403, 162500), (500, 130975), (620, 105625), (625, 104780), (650, 100750), (676, 96875), (775, 84500), (806, 81250), (845, 77500), (1250, 52390), (1300, 50375), (1550, 42250), (1612, 40625), (1625, 40300), (1690, 38750), (2015, 32500), (2500, 26195), (3100, 21125), (3125, 20956), (3250, 20150), (3380, 19375), (3875, 16900), (4030, 16250), (4225, 15500), (5239, 12500), (6250, 10478), (6500, 10075), (7750, 8450), (8060, 8125)]