81573752

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:145

約数の個数: 128

約数和(自身を含む): 189604800

約数和(自身を除く): 108031048

約数列:

[1, 2, 4, 8, 13, 17, 26, 29, 34, 37, 43, 52, 58, 68, 74, 86, 104, 116, 136, 148, 172, 221, 232, 296, 344, 377, 442, 481, 493, 559, 629, 731, 754, 884, 962, 986, 1073, 1118, 1247, 1258, 1462, 1508, 1591, 1768, 1924, 1972, 2146, 2236, 2494, 2516, 2924, 3016, 3182, 3848, 3944, 4292, 4472, 4988, 5032, 5848, 6364, 6409, 8177, 8584, 9503, 9976, 12728, 12818, 13949, 16211, 16354, 18241, 19006, 20683, 21199, 25636, 27047, 27898, 32422, 32708, 36482, 38012, 41366, 42398, 46139, 51272, 54094, 55796, 64844, 65416, 72964, 76024, 82732, 84796, 92278, 108188, 111592, 129688, 145928, 165464, 169592, 184556, 216376, 237133, 275587, 351611, 369112, 474266, 551174, 599807, 703222, 784363, 948532, 1102348, 1199614, 1406444, 1568726, 1897064, 2204696, 2399228, 2812888, 3137452, 4798456, 6274904, 10196719, 20393438, 40786876, 81573752]

約数ペア:

[(1, 81573752), (2, 40786876), (4, 20393438), (8, 10196719), (13, 6274904), (17, 4798456), (26, 3137452), (29, 2812888), (34, 2399228), (37, 2204696), (43, 1897064), (52, 1568726), (58, 1406444), (68, 1199614), (74, 1102348), (86, 948532), (104, 784363), (116, 703222), (136, 599807), (148, 551174), (172, 474266), (221, 369112), (232, 351611), (296, 275587), (344, 237133), (377, 216376), (442, 184556), (481, 169592), (493, 165464), (559, 145928), (629, 129688), (731, 111592), (754, 108188), (884, 92278), (962, 84796), (986, 82732), (1073, 76024), (1118, 72964), (1247, 65416), (1258, 64844), (1462, 55796), (1508, 54094), (1591, 51272), (1768, 46139), (1924, 42398), (1972, 41366), (2146, 38012), (2236, 36482), (2494, 32708), (2516, 32422), (2924, 27898), (3016, 27047), (3182, 25636), (3848, 21199), (3944, 20683), (4292, 19006), (4472, 18241), (4988, 16354), (5032, 16211), (5848, 13949), (6364, 12818), (6409, 12728), (8177, 9976), (8584, 9503)]