27812720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{569}}^1$

素因数の和:642

約数の個数: 80

約数和(自身を含む): 71245440

約数和(自身を除く): 43432720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 130, 188, 208, 235, 260, 376, 470, 520, 569, 611, 752, 940, 1040, 1138, 1222, 1880, 2276, 2444, 2845, 3055, 3760, 4552, 4888, 5690, 6110, 7397, 9104, 9776, 11380, 12220, 14794, 22760, 24440, 26743, 29588, 36985, 45520, 48880, 53486, 59176, 73970, 106972, 118352, 133715, 147940, 213944, 267430, 295880, 347659, 427888, 534860, 591760, 695318, 1069720, 1390636, 1738295, 2139440, 2781272, 3476590, 5562544, 6953180, 13906360, 27812720]

約数ペア:

[(1, 27812720), (2, 13906360), (4, 6953180), (5, 5562544), (8, 3476590), (10, 2781272), (13, 2139440), (16, 1738295), (20, 1390636), (26, 1069720), (40, 695318), (47, 591760), (52, 534860), (65, 427888), (80, 347659), (94, 295880), (104, 267430), (130, 213944), (188, 147940), (208, 133715), (235, 118352), (260, 106972), (376, 73970), (470, 59176), (520, 53486), (569, 48880), (611, 45520), (752, 36985), (940, 29588), (1040, 26743), (1138, 24440), (1222, 22760), (1880, 14794), (2276, 12220), (2444, 11380), (2845, 9776), (3055, 9104), (3760, 7397), (4552, 6110), (4888, 5690)]