212800000040

素因数分解:

$2^3\times 5^1\times {\mathrm{1619}}^1\times {\mathrm{3285979}}^1$

素因数の和:3287609

約数の個数: 32

約数和(自身を含む): 479095884000

約数和(自身を除く): 266295883960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1619, 3238, 6476, 8095, 12952, 16190, 32380, 64760, 3285979, 6571958, 13143916, 16429895, 26287832, 32859790, 65719580, 131439160, 5320000001, 10640000002, 21280000004, 26600000005, 42560000008, 53200000010, 106400000020, 212800000040]

約数ペア:

[(1, 212800000040), (2, 106400000020), (4, 53200000010), (5, 42560000008), (8, 26600000005), (10, 21280000004), (20, 10640000002), (40, 5320000001), (1619, 131439160), (3238, 65719580), (6476, 32859790), (8095, 26287832), (12952, 16429895), (16190, 13143916), (32380, 6571958), (64760, 3285979)]