81250980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19073}}^1$

素因数の和:19156

約数の個数: 48

約数和(自身を含む): 230719104

約数和(自身を除く): 149468124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 19073, 38146, 57219, 76292, 95365, 114438, 190730, 228876, 286095, 381460, 572190, 1144380, 1354183, 2708366, 4062549, 5416732, 6770915, 8125098, 13541830, 16250196, 20312745, 27083660, 40625490, 81250980]

約数ペア:

[(1, 81250980), (2, 40625490), (3, 27083660), (4, 20312745), (5, 16250196), (6, 13541830), (10, 8125098), (12, 6770915), (15, 5416732), (20, 4062549), (30, 2708366), (60, 1354183), (71, 1144380), (142, 572190), (213, 381460), (284, 286095), (355, 228876), (426, 190730), (710, 114438), (852, 95365), (1065, 76292), (1420, 57219), (2130, 38146), (4260, 19073)]