213720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:164

約数の個数: 64

約数和(自身を含む): 695520

約数和(自身を除く): 481800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 137, 156, 195, 260, 274, 312, 390, 411, 520, 548, 685, 780, 822, 1096, 1370, 1560, 1644, 1781, 2055, 2740, 3288, 3562, 4110, 5343, 5480, 7124, 8220, 8905, 10686, 14248, 16440, 17810, 21372, 26715, 35620, 42744, 53430, 71240, 106860, 213720]

約数ペア:

[(1, 213720), (2, 106860), (3, 71240), (4, 53430), (5, 42744), (6, 35620), (8, 26715), (10, 21372), (12, 17810), (13, 16440), (15, 14248), (20, 10686), (24, 8905), (26, 8220), (30, 7124), (39, 5480), (40, 5343), (52, 4110), (60, 3562), (65, 3288), (78, 2740), (104, 2055), (120, 1781), (130, 1644), (137, 1560), (156, 1370), (195, 1096), (260, 822), (274, 780), (312, 685), (390, 548), (411, 520)]