649380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 1854720

約数和(自身を除く): 1205340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 137, 158, 237, 274, 316, 395, 411, 474, 548, 685, 790, 822, 948, 1185, 1370, 1580, 1644, 2055, 2370, 2740, 4110, 4740, 8220, 10823, 21646, 32469, 43292, 54115, 64938, 108230, 129876, 162345, 216460, 324690, 649380]

約数ペア:

[(1, 649380), (2, 324690), (3, 216460), (4, 162345), (5, 129876), (6, 108230), (10, 64938), (12, 54115), (15, 43292), (20, 32469), (30, 21646), (60, 10823), (79, 8220), (137, 4740), (158, 4110), (237, 2740), (274, 2370), (316, 2055), (395, 1644), (411, 1580), (474, 1370), (548, 1185), (685, 948), (790, 822)]