195741320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 450489600

約数和(自身を除く): 254748280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 157, 284, 314, 355, 439, 568, 628, 710, 785, 878, 1256, 1420, 1570, 1756, 2195, 2840, 3140, 3512, 4390, 6280, 8780, 11147, 17560, 22294, 31169, 44588, 55735, 62338, 68923, 89176, 111470, 124676, 137846, 155845, 222940, 249352, 275692, 311690, 344615, 445880, 551384, 623380, 689230, 1246760, 1378460, 2756920, 4893533, 9787066, 19574132, 24467665, 39148264, 48935330, 97870660, 195741320]

約数ペア:

[(1, 195741320), (2, 97870660), (4, 48935330), (5, 39148264), (8, 24467665), (10, 19574132), (20, 9787066), (40, 4893533), (71, 2756920), (142, 1378460), (157, 1246760), (284, 689230), (314, 623380), (355, 551384), (439, 445880), (568, 344615), (628, 311690), (710, 275692), (785, 249352), (878, 222940), (1256, 155845), (1420, 137846), (1570, 124676), (1756, 111470), (2195, 89176), (2840, 68923), (3140, 62338), (3512, 55735), (4390, 44588), (6280, 31169), (8780, 22294), (11147, 17560)]