261639393410

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{5639}}^1\times {\mathrm{4139}}^1$

素因数の和:9863

約数の個数: 64

約数和(自身を含む): 504351360000

約数和(自身を除く): 242711966590

約数列:

[1, 2, 5, 10, 19, 38, 59, 95, 118, 190, 295, 590, 1121, 2242, 4139, 5605, 5639, 8278, 11210, 11278, 20695, 28195, 41390, 56390, 78641, 107141, 157282, 214282, 244201, 332701, 393205, 488402, 535705, 665402, 786410, 1071410, 1221005, 1663505, 2442010, 3327010, 4639819, 6321319, 9279638, 12642638, 23199095, 23339821, 31606595, 46398190, 46679642, 63213190, 116699105, 233398210, 443456599, 886913198, 1377049439, 2217282995, 2754098878, 4434565990, 6885247195, 13770494390, 26163939341, 52327878682, 130819696705, 261639393410]

約数ペア:

[(1, 261639393410), (2, 130819696705), (5, 52327878682), (10, 26163939341), (19, 13770494390), (38, 6885247195), (59, 4434565990), (95, 2754098878), (118, 2217282995), (190, 1377049439), (295, 886913198), (590, 443456599), (1121, 233398210), (2242, 116699105), (4139, 63213190), (5605, 46679642), (5639, 46398190), (8278, 31606595), (11210, 23339821), (11278, 23199095), (20695, 12642638), (28195, 9279638), (41390, 6321319), (56390, 4639819), (78641, 3327010), (107141, 2442010), (157282, 1663505), (214282, 1221005), (244201, 1071410), (332701, 786410), (393205, 665402), (488402, 535705)]