28944020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2617}}^1$

素因数の和:2712

約数の個数: 48

約数和(自身を含む): 70371840

約数和(自身を除く): 41427820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2617, 2765, 5234, 5530, 10468, 11060, 13085, 18319, 26170, 36638, 52340, 73276, 91595, 183190, 206743, 366380, 413486, 826972, 1033715, 1447201, 2067430, 2894402, 4134860, 5788804, 7236005, 14472010, 28944020]

約数ペア:

[(1, 28944020), (2, 14472010), (4, 7236005), (5, 5788804), (7, 4134860), (10, 2894402), (14, 2067430), (20, 1447201), (28, 1033715), (35, 826972), (70, 413486), (79, 366380), (140, 206743), (158, 183190), (316, 91595), (395, 73276), (553, 52340), (790, 36638), (1106, 26170), (1580, 18319), (2212, 13085), (2617, 11060), (2765, 10468), (5234, 5530)]