79872520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21943}}^1$

素因数の和:21974

約数の個数: 64

約数和(自身を含む): 221195520

約数和(自身を除く): 141323000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 21943, 43886, 87772, 109715, 153601, 175544, 219430, 285259, 307202, 438860, 570518, 614404, 768005, 877720, 1141036, 1228808, 1426295, 1536010, 1996813, 2282072, 2852590, 3072020, 3993626, 5705180, 6144040, 7987252, 9984065, 11410360, 15974504, 19968130, 39936260, 79872520]

約数ペア:

[(1, 79872520), (2, 39936260), (4, 19968130), (5, 15974504), (7, 11410360), (8, 9984065), (10, 7987252), (13, 6144040), (14, 5705180), (20, 3993626), (26, 3072020), (28, 2852590), (35, 2282072), (40, 1996813), (52, 1536010), (56, 1426295), (65, 1228808), (70, 1141036), (91, 877720), (104, 768005), (130, 614404), (140, 570518), (182, 438860), (260, 307202), (280, 285259), (364, 219430), (455, 175544), (520, 153601), (728, 109715), (910, 87772), (1820, 43886), (3640, 21943)]