20851170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{233}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 53239680

約数和(自身を除く): 32388510

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 157, 190, 233, 285, 314, 466, 471, 570, 699, 785, 942, 1165, 1398, 1570, 2330, 2355, 2983, 3495, 4427, 4710, 5966, 6990, 8854, 8949, 13281, 14915, 17898, 22135, 26562, 29830, 36581, 44270, 44745, 66405, 73162, 89490, 109743, 132810, 182905, 219486, 365810, 548715, 695039, 1097430, 1390078, 2085117, 3475195, 4170234, 6950390, 10425585, 20851170]

約数ペア:

[(1, 20851170), (2, 10425585), (3, 6950390), (5, 4170234), (6, 3475195), (10, 2085117), (15, 1390078), (19, 1097430), (30, 695039), (38, 548715), (57, 365810), (95, 219486), (114, 182905), (157, 132810), (190, 109743), (233, 89490), (285, 73162), (314, 66405), (466, 44745), (471, 44270), (570, 36581), (699, 29830), (785, 26562), (942, 22135), (1165, 17898), (1398, 14915), (1570, 13281), (2330, 8949), (2355, 8854), (2983, 6990), (3495, 5966), (4427, 4710)]