321508720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{13441}}^1$

素因数の和:13490

約数の個数: 80

約数和(自身を含む): 840071232

約数和(自身を除く): 518562512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1196, 1495, 1840, 2392, 2990, 4784, 5980, 11960, 13441, 23920, 26882, 53764, 67205, 107528, 134410, 174733, 215056, 268820, 309143, 349466, 537640, 618286, 698932, 873665, 1075280, 1236572, 1397864, 1545715, 1747330, 2473144, 2795728, 3091430, 3494660, 4018859, 4946288, 6182860, 6989320, 8037718, 12365720, 13978640, 16075436, 20094295, 24731440, 32150872, 40188590, 64301744, 80377180, 160754360, 321508720]

約数ペア:

[(1, 321508720), (2, 160754360), (4, 80377180), (5, 64301744), (8, 40188590), (10, 32150872), (13, 24731440), (16, 20094295), (20, 16075436), (23, 13978640), (26, 12365720), (40, 8037718), (46, 6989320), (52, 6182860), (65, 4946288), (80, 4018859), (92, 3494660), (104, 3091430), (115, 2795728), (130, 2473144), (184, 1747330), (208, 1545715), (230, 1397864), (260, 1236572), (299, 1075280), (368, 873665), (460, 698932), (520, 618286), (598, 537640), (920, 349466), (1040, 309143), (1196, 268820), (1495, 215056), (1840, 174733), (2392, 134410), (2990, 107528), (4784, 67205), (5980, 53764), (11960, 26882), (13441, 23920)]