20559750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 52116480

約数和(自身を除く): 31556730

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 79, 125, 150, 158, 237, 250, 347, 375, 395, 474, 694, 750, 790, 1041, 1185, 1735, 1975, 2082, 2370, 3470, 3950, 5205, 5925, 8675, 9875, 10410, 11850, 17350, 19750, 26025, 27413, 29625, 43375, 52050, 54826, 59250, 82239, 86750, 130125, 137065, 164478, 260250, 274130, 411195, 685325, 822390, 1370650, 2055975, 3426625, 4111950, 6853250, 10279875, 20559750]

約数ペア:

[(1, 20559750), (2, 10279875), (3, 6853250), (5, 4111950), (6, 3426625), (10, 2055975), (15, 1370650), (25, 822390), (30, 685325), (50, 411195), (75, 274130), (79, 260250), (125, 164478), (150, 137065), (158, 130125), (237, 86750), (250, 82239), (347, 59250), (375, 54826), (395, 52050), (474, 43375), (694, 29625), (750, 27413), (790, 26025), (1041, 19750), (1185, 17350), (1735, 11850), (1975, 10410), (2082, 9875), (2370, 8675), (3470, 5925), (3950, 5205)]