255245640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1249}}^1$

素因数の和:1407

約数の個数: 128

約数和(自身を含む): 831600000

約数和(自身を除く): 576354360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 131, 156, 195, 260, 262, 312, 390, 393, 520, 524, 655, 780, 786, 1048, 1249, 1310, 1560, 1572, 1703, 1965, 2498, 2620, 3144, 3406, 3747, 3930, 4996, 5109, 5240, 6245, 6812, 7494, 7860, 8515, 9992, 10218, 12490, 13624, 14988, 15720, 16237, 17030, 18735, 20436, 24980, 25545, 29976, 32474, 34060, 37470, 40872, 48711, 49960, 51090, 64948, 68120, 74940, 81185, 97422, 102180, 129896, 149880, 162370, 163619, 194844, 204360, 243555, 324740, 327238, 389688, 487110, 490857, 649480, 654476, 818095, 974220, 981714, 1308952, 1636190, 1948440, 1963428, 2127047, 2454285, 3272380, 3926856, 4254094, 4908570, 6381141, 6544760, 8508188, 9817140, 10635235, 12762282, 17016376, 19634280, 21270470, 25524564, 31905705, 42540940, 51049128, 63811410, 85081880, 127622820, 255245640]

約数ペア:

[(1, 255245640), (2, 127622820), (3, 85081880), (4, 63811410), (5, 51049128), (6, 42540940), (8, 31905705), (10, 25524564), (12, 21270470), (13, 19634280), (15, 17016376), (20, 12762282), (24, 10635235), (26, 9817140), (30, 8508188), (39, 6544760), (40, 6381141), (52, 4908570), (60, 4254094), (65, 3926856), (78, 3272380), (104, 2454285), (120, 2127047), (130, 1963428), (131, 1948440), (156, 1636190), (195, 1308952), (260, 981714), (262, 974220), (312, 818095), (390, 654476), (393, 649480), (520, 490857), (524, 487110), (655, 389688), (780, 327238), (786, 324740), (1048, 243555), (1249, 204360), (1310, 194844), (1560, 163619), (1572, 162370), (1703, 149880), (1965, 129896), (2498, 102180), (2620, 97422), (3144, 81185), (3406, 74940), (3747, 68120), (3930, 64948), (4996, 51090), (5109, 49960), (5240, 48711), (6245, 40872), (6812, 37470), (7494, 34060), (7860, 32474), (8515, 29976), (9992, 25545), (10218, 24980), (12490, 20436), (13624, 18735), (14988, 17030), (15720, 16237)]