19958250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:145

約数の個数: 128

約数和(自身を含む): 56609280

約数和(自身を除く): 36651030

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 25, 26, 30, 39, 46, 50, 65, 69, 75, 78, 89, 115, 125, 130, 138, 150, 178, 195, 230, 250, 267, 299, 325, 345, 375, 390, 445, 534, 575, 598, 650, 690, 750, 890, 897, 975, 1150, 1157, 1335, 1495, 1625, 1725, 1794, 1950, 2047, 2225, 2314, 2670, 2875, 2990, 3250, 3450, 3471, 4094, 4450, 4485, 4875, 5750, 5785, 6141, 6675, 6942, 7475, 8625, 8970, 9750, 10235, 11125, 11570, 12282, 13350, 14950, 17250, 17355, 20470, 22250, 22425, 26611, 28925, 30705, 33375, 34710, 37375, 44850, 51175, 53222, 57850, 61410, 66750, 74750, 79833, 86775, 102350, 112125, 133055, 144625, 153525, 159666, 173550, 224250, 255875, 266110, 289250, 307050, 399165, 433875, 511750, 665275, 767625, 798330, 867750, 1330550, 1535250, 1995825, 3326375, 3991650, 6652750, 9979125, 19958250]

約数ペア:

[(1, 19958250), (2, 9979125), (3, 6652750), (5, 3991650), (6, 3326375), (10, 1995825), (13, 1535250), (15, 1330550), (23, 867750), (25, 798330), (26, 767625), (30, 665275), (39, 511750), (46, 433875), (50, 399165), (65, 307050), (69, 289250), (75, 266110), (78, 255875), (89, 224250), (115, 173550), (125, 159666), (130, 153525), (138, 144625), (150, 133055), (178, 112125), (195, 102350), (230, 86775), (250, 79833), (267, 74750), (299, 66750), (325, 61410), (345, 57850), (375, 53222), (390, 51175), (445, 44850), (534, 37375), (575, 34710), (598, 33375), (650, 30705), (690, 28925), (750, 26611), (890, 22425), (897, 22250), (975, 20470), (1150, 17355), (1157, 17250), (1335, 14950), (1495, 13350), (1625, 12282), (1725, 11570), (1794, 11125), (1950, 10235), (2047, 9750), (2225, 8970), (2314, 8625), (2670, 7475), (2875, 6942), (2990, 6675), (3250, 6141), (3450, 5785), (3471, 5750), (4094, 4875), (4450, 4485)]