18703672

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 40824000

約数和(自身を除く): 22120328

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 71, 104, 136, 142, 149, 221, 284, 298, 442, 568, 596, 884, 923, 1192, 1207, 1768, 1846, 1937, 2414, 2533, 3692, 3874, 4828, 5066, 7384, 7748, 9656, 10132, 10579, 15496, 15691, 20264, 21158, 31382, 32929, 42316, 62764, 65858, 84632, 125528, 131716, 137527, 179843, 263432, 275054, 359686, 550108, 719372, 1100216, 1438744, 2337959, 4675918, 9351836, 18703672]

約数ペア:

[(1, 18703672), (2, 9351836), (4, 4675918), (8, 2337959), (13, 1438744), (17, 1100216), (26, 719372), (34, 550108), (52, 359686), (68, 275054), (71, 263432), (104, 179843), (136, 137527), (142, 131716), (149, 125528), (221, 84632), (284, 65858), (298, 62764), (442, 42316), (568, 32929), (596, 31382), (884, 21158), (923, 20264), (1192, 15691), (1207, 15496), (1768, 10579), (1846, 10132), (1937, 9656), (2414, 7748), (2533, 7384), (3692, 5066), (3874, 4828)]