31887140

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 69370560

約数和(自身を除く): 37483420

約数列:

[1, 2, 4, 5, 10, 20, 59, 61, 118, 122, 236, 244, 295, 305, 443, 590, 610, 886, 1180, 1220, 1772, 2215, 3599, 4430, 7198, 8860, 14396, 17995, 26137, 27023, 35990, 52274, 54046, 71980, 104548, 108092, 130685, 135115, 261370, 270230, 522740, 540460, 1594357, 3188714, 6377428, 7971785, 15943570, 31887140]

約数ペア:

[(1, 31887140), (2, 15943570), (4, 7971785), (5, 6377428), (10, 3188714), (20, 1594357), (59, 540460), (61, 522740), (118, 270230), (122, 261370), (236, 135115), (244, 130685), (295, 108092), (305, 104548), (443, 71980), (590, 54046), (610, 52274), (886, 35990), (1180, 27023), (1220, 26137), (1772, 17995), (2215, 14396), (3599, 8860), (4430, 7198)]