208828788

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{439}}^1\times {\mathrm{809}}^1$

素因数の和:1269

約数の個数: 72

約数和(自身を含む): 568814400

約数和(自身を除く): 359985612

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 439, 588, 809, 878, 1317, 1618, 1756, 2427, 2634, 3073, 3236, 4854, 5268, 5663, 6146, 9219, 9708, 11326, 12292, 16989, 18438, 21511, 22652, 33978, 36876, 39641, 43022, 64533, 67956, 79282, 86044, 118923, 129066, 158564, 237846, 258132, 355151, 475692, 710302, 1065453, 1420604, 2130906, 2486057, 4261812, 4972114, 7458171, 9944228, 14916342, 17402399, 29832684, 34804798, 52207197, 69609596, 104414394, 208828788]

約数ペア:

[(1, 208828788), (2, 104414394), (3, 69609596), (4, 52207197), (6, 34804798), (7, 29832684), (12, 17402399), (14, 14916342), (21, 9944228), (28, 7458171), (42, 4972114), (49, 4261812), (84, 2486057), (98, 2130906), (147, 1420604), (196, 1065453), (294, 710302), (439, 475692), (588, 355151), (809, 258132), (878, 237846), (1317, 158564), (1618, 129066), (1756, 118923), (2427, 86044), (2634, 79282), (3073, 67956), (3236, 64533), (4854, 43022), (5268, 39641), (5663, 36876), (6146, 33978), (9219, 22652), (9708, 21511), (11326, 18438), (12292, 16989)]