278206968

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:773

約数の個数: 128

約数和(自身を含む): 800755200

約数和(自身を除く): 522548232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 71, 76, 78, 104, 114, 142, 152, 156, 213, 228, 247, 284, 312, 426, 456, 494, 568, 661, 741, 852, 923, 988, 1322, 1349, 1482, 1704, 1846, 1976, 1983, 2644, 2698, 2769, 2964, 3692, 3966, 4047, 5288, 5396, 5538, 5928, 7384, 7932, 8094, 8593, 10792, 11076, 12559, 15864, 16188, 17186, 17537, 22152, 25118, 25779, 32376, 34372, 35074, 37677, 46931, 50236, 51558, 52611, 68744, 70148, 75354, 93862, 100472, 103116, 105222, 140296, 140793, 150708, 163267, 187724, 206232, 210444, 281586, 301416, 326534, 375448, 420888, 489801, 563172, 610103, 653068, 891689, 979602, 1126344, 1220206, 1306136, 1783378, 1830309, 1959204, 2440412, 2675067, 3566756, 3660618, 3918408, 4880824, 5350134, 7133512, 7321236, 10700268, 11591957, 14642472, 21400536, 23183914, 34775871, 46367828, 69551742, 92735656, 139103484, 278206968]

約数ペア:

[(1, 278206968), (2, 139103484), (3, 92735656), (4, 69551742), (6, 46367828), (8, 34775871), (12, 23183914), (13, 21400536), (19, 14642472), (24, 11591957), (26, 10700268), (38, 7321236), (39, 7133512), (52, 5350134), (57, 4880824), (71, 3918408), (76, 3660618), (78, 3566756), (104, 2675067), (114, 2440412), (142, 1959204), (152, 1830309), (156, 1783378), (213, 1306136), (228, 1220206), (247, 1126344), (284, 979602), (312, 891689), (426, 653068), (456, 610103), (494, 563172), (568, 489801), (661, 420888), (741, 375448), (852, 326534), (923, 301416), (988, 281586), (1322, 210444), (1349, 206232), (1482, 187724), (1704, 163267), (1846, 150708), (1976, 140793), (1983, 140296), (2644, 105222), (2698, 103116), (2769, 100472), (2964, 93862), (3692, 75354), (3966, 70148), (4047, 68744), (5288, 52611), (5396, 51558), (5538, 50236), (5928, 46931), (7384, 37677), (7932, 35074), (8094, 34372), (8593, 32376), (10792, 25779), (11076, 25118), (12559, 22152), (15864, 17537), (16188, 17186)]