72891940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{787}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 167598144

約数和(自身を除く): 94706204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 421, 787, 842, 1574, 1684, 2105, 3148, 3935, 4210, 4631, 7870, 8420, 8657, 9262, 15740, 17314, 18524, 23155, 34628, 43285, 46310, 86570, 92620, 173140, 331327, 662654, 1325308, 1656635, 3313270, 3644597, 6626540, 7289194, 14578388, 18222985, 36445970, 72891940]

約数ペア:

[(1, 72891940), (2, 36445970), (4, 18222985), (5, 14578388), (10, 7289194), (11, 6626540), (20, 3644597), (22, 3313270), (44, 1656635), (55, 1325308), (110, 662654), (220, 331327), (421, 173140), (787, 92620), (842, 86570), (1574, 46310), (1684, 43285), (2105, 34628), (3148, 23155), (3935, 18524), (4210, 17314), (4631, 15740), (7870, 9262), (8420, 8657)]