19785750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:111

約数の個数: 128

約数和(自身を含む): 54632448

約数和(自身を除く): 34846698

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 31, 37, 46, 50, 62, 69, 74, 75, 93, 111, 115, 125, 138, 150, 155, 185, 186, 222, 230, 250, 310, 345, 370, 375, 465, 555, 575, 690, 713, 750, 775, 851, 925, 930, 1110, 1147, 1150, 1426, 1550, 1702, 1725, 1850, 2139, 2294, 2325, 2553, 2775, 2875, 3441, 3450, 3565, 3875, 4255, 4278, 4625, 4650, 5106, 5550, 5735, 5750, 6882, 7130, 7750, 8510, 8625, 9250, 10695, 11470, 11625, 12765, 13875, 17205, 17250, 17825, 21275, 21390, 23250, 25530, 26381, 27750, 28675, 34410, 35650, 42550, 52762, 53475, 57350, 63825, 79143, 86025, 89125, 106375, 106950, 127650, 131905, 143375, 158286, 172050, 178250, 212750, 263810, 267375, 286750, 319125, 395715, 430125, 534750, 638250, 659525, 791430, 860250, 1319050, 1978575, 3297625, 3957150, 6595250, 9892875, 19785750]

約数ペア:

[(1, 19785750), (2, 9892875), (3, 6595250), (5, 3957150), (6, 3297625), (10, 1978575), (15, 1319050), (23, 860250), (25, 791430), (30, 659525), (31, 638250), (37, 534750), (46, 430125), (50, 395715), (62, 319125), (69, 286750), (74, 267375), (75, 263810), (93, 212750), (111, 178250), (115, 172050), (125, 158286), (138, 143375), (150, 131905), (155, 127650), (185, 106950), (186, 106375), (222, 89125), (230, 86025), (250, 79143), (310, 63825), (345, 57350), (370, 53475), (375, 52762), (465, 42550), (555, 35650), (575, 34410), (690, 28675), (713, 27750), (750, 26381), (775, 25530), (851, 23250), (925, 21390), (930, 21275), (1110, 17825), (1147, 17250), (1150, 17205), (1426, 13875), (1550, 12765), (1702, 11625), (1725, 11470), (1850, 10695), (2139, 9250), (2294, 8625), (2325, 8510), (2553, 7750), (2775, 7130), (2875, 6882), (3441, 5750), (3450, 5735), (3565, 5550), (3875, 5106), (4255, 4650), (4278, 4625)]