19918620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2699}}^1$

素因数の和:2755

約数の個数: 72

約数和(自身を含む): 61916400

約数和(自身を除く): 41997780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2699, 3690, 5398, 7380, 8097, 10796, 13495, 16194, 24291, 26990, 32388, 40485, 48582, 53980, 80970, 97164, 110659, 121455, 161940, 221318, 242910, 331977, 442636, 485820, 553295, 663954, 995931, 1106590, 1327908, 1659885, 1991862, 2213180, 3319770, 3983724, 4979655, 6639540, 9959310, 19918620]

約数ペア:

[(1, 19918620), (2, 9959310), (3, 6639540), (4, 4979655), (5, 3983724), (6, 3319770), (9, 2213180), (10, 1991862), (12, 1659885), (15, 1327908), (18, 1106590), (20, 995931), (30, 663954), (36, 553295), (41, 485820), (45, 442636), (60, 331977), (82, 242910), (90, 221318), (123, 161940), (164, 121455), (180, 110659), (205, 97164), (246, 80970), (369, 53980), (410, 48582), (492, 40485), (615, 32388), (738, 26990), (820, 24291), (1230, 16194), (1476, 13495), (1845, 10796), (2460, 8097), (2699, 7380), (3690, 5398)]