158601220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1831}}^1$

素因数の和:1972

約数の個数: 48

約数和(自身を含む): 343478016

約数和(自身を除く): 184876796

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 244, 284, 305, 355, 610, 710, 1220, 1420, 1831, 3662, 4331, 7324, 8662, 9155, 17324, 18310, 21655, 36620, 43310, 86620, 111691, 130001, 223382, 260002, 446764, 520004, 558455, 650005, 1116910, 1300010, 2233820, 2600020, 7930061, 15860122, 31720244, 39650305, 79300610, 158601220]

約数ペア:

[(1, 158601220), (2, 79300610), (4, 39650305), (5, 31720244), (10, 15860122), (20, 7930061), (61, 2600020), (71, 2233820), (122, 1300010), (142, 1116910), (244, 650005), (284, 558455), (305, 520004), (355, 446764), (610, 260002), (710, 223382), (1220, 130001), (1420, 111691), (1831, 86620), (3662, 43310), (4331, 36620), (7324, 21655), (8662, 18310), (9155, 17324)]