16120000

素因数分解:

$2^6\times 5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:76

約数の個数: 140

約数和(自身を含む): 44435776

約数和(自身を除く): 28315776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 64, 65, 80, 100, 104, 124, 125, 130, 155, 160, 200, 208, 248, 250, 260, 310, 320, 325, 400, 403, 416, 496, 500, 520, 620, 625, 650, 775, 800, 806, 832, 992, 1000, 1040, 1240, 1250, 1300, 1550, 1600, 1612, 1625, 1984, 2000, 2015, 2080, 2480, 2500, 2600, 3100, 3224, 3250, 3875, 4000, 4030, 4160, 4960, 5000, 5200, 6200, 6448, 6500, 7750, 8000, 8060, 8125, 9920, 10000, 10075, 10400, 12400, 12896, 13000, 15500, 16120, 16250, 19375, 20000, 20150, 20800, 24800, 25792, 26000, 31000, 32240, 32500, 38750, 40000, 40300, 49600, 50375, 52000, 62000, 64480, 65000, 77500, 80600, 100750, 104000, 124000, 128960, 130000, 155000, 161200, 201500, 248000, 251875, 260000, 310000, 322400, 403000, 503750, 520000, 620000, 644800, 806000, 1007500, 1240000, 1612000, 2015000, 3224000, 4030000, 8060000, 16120000]

約数ペア:

[(1, 16120000), (2, 8060000), (4, 4030000), (5, 3224000), (8, 2015000), (10, 1612000), (13, 1240000), (16, 1007500), (20, 806000), (25, 644800), (26, 620000), (31, 520000), (32, 503750), (40, 403000), (50, 322400), (52, 310000), (62, 260000), (64, 251875), (65, 248000), (80, 201500), (100, 161200), (104, 155000), (124, 130000), (125, 128960), (130, 124000), (155, 104000), (160, 100750), (200, 80600), (208, 77500), (248, 65000), (250, 64480), (260, 62000), (310, 52000), (320, 50375), (325, 49600), (400, 40300), (403, 40000), (416, 38750), (496, 32500), (500, 32240), (520, 31000), (620, 26000), (625, 25792), (650, 24800), (775, 20800), (800, 20150), (806, 20000), (832, 19375), (992, 16250), (1000, 16120), (1040, 15500), (1240, 13000), (1250, 12896), (1300, 12400), (1550, 10400), (1600, 10075), (1612, 10000), (1625, 9920), (1984, 8125), (2000, 8060), (2015, 8000), (2080, 7750), (2480, 6500), (2500, 6448), (2600, 6200), (3100, 5200), (3224, 5000), (3250, 4960), (3875, 4160), (4000, 4030)]