2891940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 8175552

約数和(自身を除く): 5283612

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 307, 314, 471, 614, 628, 785, 921, 942, 1228, 1535, 1570, 1842, 1884, 2355, 3070, 3140, 3684, 4605, 4710, 6140, 9210, 9420, 18420, 48199, 96398, 144597, 192796, 240995, 289194, 481990, 578388, 722985, 963980, 1445970, 2891940]

約数ペア:

[(1, 2891940), (2, 1445970), (3, 963980), (4, 722985), (5, 578388), (6, 481990), (10, 289194), (12, 240995), (15, 192796), (20, 144597), (30, 96398), (60, 48199), (157, 18420), (307, 9420), (314, 9210), (471, 6140), (614, 4710), (628, 4605), (785, 3684), (921, 3140), (942, 3070), (1228, 2355), (1535, 1884), (1570, 1842)]