81890250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 227066112

約数和(自身を除く): 145175862

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 37, 39, 50, 65, 74, 75, 78, 111, 125, 130, 150, 185, 195, 222, 227, 250, 325, 370, 375, 390, 454, 481, 555, 650, 681, 750, 925, 962, 975, 1110, 1135, 1362, 1443, 1625, 1850, 1950, 2270, 2405, 2775, 2886, 2951, 3250, 3405, 4625, 4810, 4875, 5550, 5675, 5902, 6810, 7215, 8399, 8853, 9250, 9750, 11350, 12025, 13875, 14430, 14755, 16798, 17025, 17706, 24050, 25197, 27750, 28375, 29510, 34050, 36075, 41995, 44265, 50394, 56750, 60125, 72150, 73775, 83990, 85125, 88530, 109187, 120250, 125985, 147550, 170250, 180375, 209975, 218374, 221325, 251970, 327561, 360750, 368875, 419950, 442650, 545935, 629925, 655122, 737750, 1049875, 1091870, 1106625, 1259850, 1637805, 2099750, 2213250, 2729675, 3149625, 3275610, 5459350, 6299250, 8189025, 13648375, 16378050, 27296750, 40945125, 81890250]

約数ペア:

[(1, 81890250), (2, 40945125), (3, 27296750), (5, 16378050), (6, 13648375), (10, 8189025), (13, 6299250), (15, 5459350), (25, 3275610), (26, 3149625), (30, 2729675), (37, 2213250), (39, 2099750), (50, 1637805), (65, 1259850), (74, 1106625), (75, 1091870), (78, 1049875), (111, 737750), (125, 655122), (130, 629925), (150, 545935), (185, 442650), (195, 419950), (222, 368875), (227, 360750), (250, 327561), (325, 251970), (370, 221325), (375, 218374), (390, 209975), (454, 180375), (481, 170250), (555, 147550), (650, 125985), (681, 120250), (750, 109187), (925, 88530), (962, 85125), (975, 83990), (1110, 73775), (1135, 72150), (1362, 60125), (1443, 56750), (1625, 50394), (1850, 44265), (1950, 41995), (2270, 36075), (2405, 34050), (2775, 29510), (2886, 28375), (2951, 27750), (3250, 25197), (3405, 24050), (4625, 17706), (4810, 17025), (4875, 16798), (5550, 14755), (5675, 14430), (5902, 13875), (6810, 12025), (7215, 11350), (8399, 9750), (8853, 9250)]