355943980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{32183}}^1$

素因数の和:32278

約数の個数: 48

約数和(自身を含む): 865105920

約数和(自身を除く): 509161940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 5530, 11060, 32183, 64366, 128732, 160915, 225281, 321830, 450562, 643660, 901124, 1126405, 2252810, 2542457, 4505620, 5084914, 10169828, 12712285, 17797199, 25424570, 35594398, 50849140, 71188796, 88985995, 177971990, 355943980]

約数ペア:

[(1, 355943980), (2, 177971990), (4, 88985995), (5, 71188796), (7, 50849140), (10, 35594398), (14, 25424570), (20, 17797199), (28, 12712285), (35, 10169828), (70, 5084914), (79, 4505620), (140, 2542457), (158, 2252810), (316, 1126405), (395, 901124), (553, 643660), (790, 450562), (1106, 321830), (1580, 225281), (2212, 160915), (2765, 128732), (5530, 64366), (11060, 32183)]