54231220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 116678016

約数和(自身を除く): 62446796

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 181, 211, 284, 355, 362, 422, 710, 724, 844, 905, 1055, 1420, 1810, 2110, 3620, 4220, 12851, 14981, 25702, 29962, 38191, 51404, 59924, 64255, 74905, 76382, 128510, 149810, 152764, 190955, 257020, 299620, 381910, 763820, 2711561, 5423122, 10846244, 13557805, 27115610, 54231220]

約数ペア:

[(1, 54231220), (2, 27115610), (4, 13557805), (5, 10846244), (10, 5423122), (20, 2711561), (71, 763820), (142, 381910), (181, 299620), (211, 257020), (284, 190955), (355, 152764), (362, 149810), (422, 128510), (710, 76382), (724, 74905), (844, 64255), (905, 59924), (1055, 51404), (1420, 38191), (1810, 29962), (2110, 25702), (3620, 14981), (4220, 12851)]