256808712

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:587

約数の個数: 128

約数和(自身を含む): 717926400

約数和(自身を除く): 461117688

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 31, 37, 38, 57, 62, 74, 76, 93, 111, 114, 124, 148, 152, 186, 222, 228, 248, 296, 372, 444, 456, 491, 589, 703, 744, 888, 982, 1147, 1178, 1406, 1473, 1767, 1964, 2109, 2294, 2356, 2812, 2946, 3441, 3534, 3928, 4218, 4588, 4712, 5624, 5892, 6882, 7068, 8436, 9176, 9329, 11784, 13764, 14136, 15221, 16872, 18167, 18658, 21793, 27528, 27987, 30442, 36334, 37316, 43586, 45663, 54501, 55974, 60884, 65379, 72668, 74632, 87172, 91326, 109002, 111948, 121768, 130758, 145336, 174344, 182652, 218004, 223896, 261516, 289199, 345173, 365304, 436008, 523032, 563177, 578398, 690346, 867597, 1035519, 1126354, 1156796, 1380692, 1689531, 1735194, 2071038, 2252708, 2313592, 2761384, 3379062, 3470388, 4142076, 4505416, 6758124, 6940776, 8284152, 10700363, 13516248, 21400726, 32101089, 42801452, 64202178, 85602904, 128404356, 256808712]

約数ペア:

[(1, 256808712), (2, 128404356), (3, 85602904), (4, 64202178), (6, 42801452), (8, 32101089), (12, 21400726), (19, 13516248), (24, 10700363), (31, 8284152), (37, 6940776), (38, 6758124), (57, 4505416), (62, 4142076), (74, 3470388), (76, 3379062), (93, 2761384), (111, 2313592), (114, 2252708), (124, 2071038), (148, 1735194), (152, 1689531), (186, 1380692), (222, 1156796), (228, 1126354), (248, 1035519), (296, 867597), (372, 690346), (444, 578398), (456, 563177), (491, 523032), (589, 436008), (703, 365304), (744, 345173), (888, 289199), (982, 261516), (1147, 223896), (1178, 218004), (1406, 182652), (1473, 174344), (1767, 145336), (1964, 130758), (2109, 121768), (2294, 111948), (2356, 109002), (2812, 91326), (2946, 87172), (3441, 74632), (3534, 72668), (3928, 65379), (4218, 60884), (4588, 55974), (4712, 54501), (5624, 45663), (5892, 43586), (6882, 37316), (7068, 36334), (8436, 30442), (9176, 27987), (9329, 27528), (11784, 21793), (13764, 18658), (14136, 18167), (15221, 16872)]