12720896

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 27961920

約数和(自身を除く): 15241024

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 64, 68, 74, 79, 128, 136, 148, 158, 256, 272, 296, 316, 544, 592, 629, 632, 1088, 1184, 1258, 1264, 1343, 2176, 2368, 2516, 2528, 2686, 2923, 4352, 4736, 5032, 5056, 5372, 5846, 9472, 10064, 10112, 10744, 11692, 20128, 20224, 21488, 23384, 40256, 42976, 46768, 49691, 80512, 85952, 93536, 99382, 161024, 171904, 187072, 198764, 343808, 374144, 397528, 748288, 795056, 1590112, 3180224, 6360448, 12720896]

約数ペア:

[(1, 12720896), (2, 6360448), (4, 3180224), (8, 1590112), (16, 795056), (17, 748288), (32, 397528), (34, 374144), (37, 343808), (64, 198764), (68, 187072), (74, 171904), (79, 161024), (128, 99382), (136, 93536), (148, 85952), (158, 80512), (256, 49691), (272, 46768), (296, 42976), (316, 40256), (544, 23384), (592, 21488), (629, 20224), (632, 20128), (1088, 11692), (1184, 10744), (1258, 10112), (1264, 10064), (1343, 9472), (2176, 5846), (2368, 5372), (2516, 5056), (2528, 5032), (2686, 4736), (2923, 4352)]