1247925320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{11813}}^1$

素因数の和:11982

約数の個数: 64

約数和(自身を含む): 2977128000

約数和(自身を除く): 1729202680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 139, 152, 190, 278, 380, 556, 695, 760, 1112, 1390, 2641, 2780, 5282, 5560, 10564, 11813, 13205, 21128, 23626, 26410, 47252, 52820, 59065, 94504, 105640, 118130, 224447, 236260, 448894, 472520, 897788, 1122235, 1642007, 1795576, 2244470, 3284014, 4488940, 6568028, 8210035, 8977880, 13136056, 16420070, 31198133, 32840140, 62396266, 65680280, 124792532, 155990665, 249585064, 311981330, 623962660, 1247925320]

約数ペア:

[(1, 1247925320), (2, 623962660), (4, 311981330), (5, 249585064), (8, 155990665), (10, 124792532), (19, 65680280), (20, 62396266), (38, 32840140), (40, 31198133), (76, 16420070), (95, 13136056), (139, 8977880), (152, 8210035), (190, 6568028), (278, 4488940), (380, 3284014), (556, 2244470), (695, 1795576), (760, 1642007), (1112, 1122235), (1390, 897788), (2641, 472520), (2780, 448894), (5282, 236260), (5560, 224447), (10564, 118130), (11813, 105640), (13205, 94504), (21128, 59065), (23626, 52820), (26410, 47252)]