312903580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{239}}^1\times {\mathrm{541}}^1$

素因数の和:811

約数の個数: 72

約数和(自身を含む): 726626880

約数和(自身を除く): 413723300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 239, 242, 478, 484, 541, 605, 956, 1082, 1195, 1210, 2164, 2390, 2420, 2629, 2705, 4780, 5258, 5410, 5951, 10516, 10820, 11902, 13145, 23804, 26290, 28919, 29755, 52580, 57838, 59510, 65461, 115676, 119020, 129299, 130922, 144595, 258598, 261844, 289190, 327305, 517196, 578380, 646495, 654610, 1292990, 1309220, 1422289, 2585980, 2844578, 5689156, 7111445, 14222890, 15645179, 28445780, 31290358, 62580716, 78225895, 156451790, 312903580]

約数ペア:

[(1, 312903580), (2, 156451790), (4, 78225895), (5, 62580716), (10, 31290358), (11, 28445780), (20, 15645179), (22, 14222890), (44, 7111445), (55, 5689156), (110, 2844578), (121, 2585980), (220, 1422289), (239, 1309220), (242, 1292990), (478, 654610), (484, 646495), (541, 578380), (605, 517196), (956, 327305), (1082, 289190), (1195, 261844), (1210, 258598), (2164, 144595), (2390, 130922), (2420, 129299), (2629, 119020), (2705, 115676), (4780, 65461), (5258, 59510), (5410, 57838), (5951, 52580), (10516, 29755), (10820, 28919), (11902, 26290), (13145, 23804)]