10989220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 26812800

約数和(自身を除く): 15823580

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 239, 242, 380, 418, 478, 484, 605, 836, 956, 1045, 1195, 1210, 2090, 2299, 2390, 2420, 2629, 4180, 4541, 4598, 4780, 5258, 9082, 9196, 10516, 11495, 13145, 18164, 22705, 22990, 26290, 28919, 45410, 45980, 49951, 52580, 57838, 90820, 99902, 115676, 144595, 199804, 249755, 289190, 499510, 549461, 578380, 999020, 1098922, 2197844, 2747305, 5494610, 10989220]

約数ペア:

[(1, 10989220), (2, 5494610), (4, 2747305), (5, 2197844), (10, 1098922), (11, 999020), (19, 578380), (20, 549461), (22, 499510), (38, 289190), (44, 249755), (55, 199804), (76, 144595), (95, 115676), (110, 99902), (121, 90820), (190, 57838), (209, 52580), (220, 49951), (239, 45980), (242, 45410), (380, 28919), (418, 26290), (478, 22990), (484, 22705), (605, 18164), (836, 13145), (956, 11495), (1045, 10516), (1195, 9196), (1210, 9082), (2090, 5258), (2299, 4780), (2390, 4598), (2420, 4541), (2629, 4180)]