28049580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11987}}^1$

素因数の和:12015

約数の個数: 72

約数和(自身を含む): 91636272

約数和(自身を除く): 63586692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 11987, 23974, 35961, 47948, 59935, 71922, 107883, 119870, 143844, 155831, 179805, 215766, 239740, 311662, 359610, 431532, 467493, 539415, 623324, 719220, 779155, 934986, 1078830, 1402479, 1558310, 1869972, 2157660, 2337465, 2804958, 3116620, 4674930, 5609916, 7012395, 9349860, 14024790, 28049580]

約数ペア:

[(1, 28049580), (2, 14024790), (3, 9349860), (4, 7012395), (5, 5609916), (6, 4674930), (9, 3116620), (10, 2804958), (12, 2337465), (13, 2157660), (15, 1869972), (18, 1558310), (20, 1402479), (26, 1078830), (30, 934986), (36, 779155), (39, 719220), (45, 623324), (52, 539415), (60, 467493), (65, 431532), (78, 359610), (90, 311662), (117, 239740), (130, 215766), (156, 179805), (180, 155831), (195, 143844), (234, 119870), (260, 107883), (390, 71922), (468, 59935), (585, 47948), (780, 35961), (1170, 23974), (2340, 11987)]