43281940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2729}}^1$

素因数の和:2812

約数の個数: 48

約数和(自身を含む): 99524880

約数和(自身を除く): 56242940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 2729, 3172, 3965, 5458, 7930, 10916, 13645, 15860, 27290, 35477, 54580, 70954, 141908, 166469, 177385, 332938, 354770, 665876, 709540, 832345, 1664690, 2164097, 3329380, 4328194, 8656388, 10820485, 21640970, 43281940]

約数ペア:

[(1, 43281940), (2, 21640970), (4, 10820485), (5, 8656388), (10, 4328194), (13, 3329380), (20, 2164097), (26, 1664690), (52, 832345), (61, 709540), (65, 665876), (122, 354770), (130, 332938), (244, 177385), (260, 166469), (305, 141908), (610, 70954), (793, 54580), (1220, 35477), (1586, 27290), (2729, 15860), (3172, 13645), (3965, 10916), (5458, 7930)]