18136280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 43740000

約数和(自身を除く): 25603720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 149, 170, 179, 298, 340, 358, 596, 680, 716, 745, 895, 1192, 1432, 1490, 1790, 2533, 2980, 3043, 3580, 5066, 5960, 6086, 7160, 10132, 12172, 12665, 15215, 20264, 24344, 25330, 26671, 30430, 50660, 53342, 60860, 101320, 106684, 121720, 133355, 213368, 266710, 453407, 533420, 906814, 1066840, 1813628, 2267035, 3627256, 4534070, 9068140, 18136280]

約数ペア:

[(1, 18136280), (2, 9068140), (4, 4534070), (5, 3627256), (8, 2267035), (10, 1813628), (17, 1066840), (20, 906814), (34, 533420), (40, 453407), (68, 266710), (85, 213368), (136, 133355), (149, 121720), (170, 106684), (179, 101320), (298, 60860), (340, 53342), (358, 50660), (596, 30430), (680, 26671), (716, 25330), (745, 24344), (895, 20264), (1192, 15215), (1432, 12665), (1490, 12172), (1790, 10132), (2533, 7160), (2980, 6086), (3043, 5960), (3580, 5066)]