278842408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 575910720

約数和(自身を除く): 297068312

約数列:

[1, 2, 4, 8, 13, 26, 52, 97, 104, 131, 194, 211, 262, 388, 422, 524, 776, 844, 1048, 1261, 1688, 1703, 2522, 2743, 3406, 5044, 5486, 6812, 10088, 10972, 12707, 13624, 20467, 21944, 25414, 27641, 40934, 50828, 55282, 81868, 101656, 110564, 163736, 165191, 221128, 266071, 330382, 359333, 532142, 660764, 718666, 1064284, 1321528, 1437332, 2128568, 2681177, 2874664, 5362354, 10724708, 21449416, 34855301, 69710602, 139421204, 278842408]

約数ペア:

[(1, 278842408), (2, 139421204), (4, 69710602), (8, 34855301), (13, 21449416), (26, 10724708), (52, 5362354), (97, 2874664), (104, 2681177), (131, 2128568), (194, 1437332), (211, 1321528), (262, 1064284), (388, 718666), (422, 660764), (524, 532142), (776, 359333), (844, 330382), (1048, 266071), (1261, 221128), (1688, 165191), (1703, 163736), (2522, 110564), (2743, 101656), (3406, 81868), (5044, 55282), (5486, 50828), (6812, 40934), (10088, 27641), (10972, 25414), (12707, 21944), (13624, 20467)]