521718890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:468

約数の個数: 128

約数和(自身を含む): 1239183360

約数和(自身を除く): 717464470

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 77, 89, 110, 115, 154, 161, 178, 230, 253, 322, 331, 385, 445, 506, 623, 662, 770, 805, 890, 979, 1246, 1265, 1610, 1655, 1771, 1958, 2047, 2317, 2530, 3115, 3310, 3542, 3641, 4094, 4634, 4895, 6230, 6853, 7282, 7613, 8855, 9790, 10235, 11585, 13706, 14329, 15226, 17710, 18205, 20470, 22517, 23170, 25487, 28658, 29459, 34265, 36410, 38065, 45034, 50974, 53291, 58918, 68530, 71645, 76130, 83743, 106582, 112585, 127435, 143290, 147295, 157619, 167486, 206213, 225170, 254870, 266455, 294590, 315238, 324049, 412426, 418715, 532910, 586201, 648098, 677557, 788095, 837430, 1031065, 1172402, 1355114, 1576190, 1620245, 2062130, 2268343, 2931005, 3240490, 3387785, 4536686, 4742899, 5862010, 6775570, 7453127, 9485798, 11341715, 14906254, 22683430, 23714495, 37265635, 47428990, 52171889, 74531270, 104343778, 260859445, 521718890]

約数ペア:

[(1, 521718890), (2, 260859445), (5, 104343778), (7, 74531270), (10, 52171889), (11, 47428990), (14, 37265635), (22, 23714495), (23, 22683430), (35, 14906254), (46, 11341715), (55, 9485798), (70, 7453127), (77, 6775570), (89, 5862010), (110, 4742899), (115, 4536686), (154, 3387785), (161, 3240490), (178, 2931005), (230, 2268343), (253, 2062130), (322, 1620245), (331, 1576190), (385, 1355114), (445, 1172402), (506, 1031065), (623, 837430), (662, 788095), (770, 677557), (805, 648098), (890, 586201), (979, 532910), (1246, 418715), (1265, 412426), (1610, 324049), (1655, 315238), (1771, 294590), (1958, 266455), (2047, 254870), (2317, 225170), (2530, 206213), (3115, 167486), (3310, 157619), (3542, 147295), (3641, 143290), (4094, 127435), (4634, 112585), (4895, 106582), (6230, 83743), (6853, 76130), (7282, 71645), (7613, 68530), (8855, 58918), (9790, 53291), (10235, 50974), (11585, 45034), (13706, 38065), (14329, 36410), (15226, 34265), (17710, 29459), (18205, 28658), (20470, 25487), (22517, 23170)]