18355220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{311}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 41827968

約数和(自身を除く): 23472748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 227, 260, 311, 454, 622, 908, 1135, 1244, 1555, 2270, 2951, 3110, 4043, 4540, 5902, 6220, 8086, 11804, 14755, 16172, 20215, 29510, 40430, 59020, 70597, 80860, 141194, 282388, 352985, 705970, 917761, 1411940, 1835522, 3671044, 4588805, 9177610, 18355220]

約数ペア:

[(1, 18355220), (2, 9177610), (4, 4588805), (5, 3671044), (10, 1835522), (13, 1411940), (20, 917761), (26, 705970), (52, 352985), (65, 282388), (130, 141194), (227, 80860), (260, 70597), (311, 59020), (454, 40430), (622, 29510), (908, 20215), (1135, 16172), (1244, 14755), (1555, 11804), (2270, 8086), (2951, 6220), (3110, 5902), (4043, 4540)]