281349250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:269

約数の個数: 128

約数和(自身を含む): 660441600

約数和(自身を除く): 379092350

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 83, 91, 125, 130, 149, 166, 175, 182, 250, 298, 325, 350, 415, 455, 581, 650, 745, 830, 875, 910, 1043, 1079, 1162, 1490, 1625, 1750, 1937, 2075, 2086, 2158, 2275, 2905, 3250, 3725, 3874, 4150, 4550, 5215, 5395, 5810, 7450, 7553, 9685, 10375, 10430, 10790, 11375, 12367, 13559, 14525, 15106, 18625, 19370, 20750, 22750, 24734, 26075, 26975, 27118, 29050, 37250, 37765, 48425, 52150, 53950, 61835, 67795, 72625, 75530, 86569, 96850, 123670, 130375, 134875, 135590, 145250, 160771, 173138, 188825, 242125, 260750, 269750, 309175, 321542, 338975, 377650, 432845, 484250, 618350, 677950, 803855, 865690, 944125, 1125397, 1545875, 1607710, 1694875, 1888250, 2164225, 2250794, 3091750, 3389750, 4019275, 4328450, 5626985, 8038550, 10821125, 11253970, 20096375, 21642250, 28134925, 40192750, 56269850, 140674625, 281349250]

約数ペア:

[(1, 281349250), (2, 140674625), (5, 56269850), (7, 40192750), (10, 28134925), (13, 21642250), (14, 20096375), (25, 11253970), (26, 10821125), (35, 8038550), (50, 5626985), (65, 4328450), (70, 4019275), (83, 3389750), (91, 3091750), (125, 2250794), (130, 2164225), (149, 1888250), (166, 1694875), (175, 1607710), (182, 1545875), (250, 1125397), (298, 944125), (325, 865690), (350, 803855), (415, 677950), (455, 618350), (581, 484250), (650, 432845), (745, 377650), (830, 338975), (875, 321542), (910, 309175), (1043, 269750), (1079, 260750), (1162, 242125), (1490, 188825), (1625, 173138), (1750, 160771), (1937, 145250), (2075, 135590), (2086, 134875), (2158, 130375), (2275, 123670), (2905, 96850), (3250, 86569), (3725, 75530), (3874, 72625), (4150, 67795), (4550, 61835), (5215, 53950), (5395, 52150), (5810, 48425), (7450, 37765), (7553, 37250), (9685, 29050), (10375, 27118), (10430, 26975), (10790, 26075), (11375, 24734), (12367, 22750), (13559, 20750), (14525, 19370), (15106, 18625)]