15640460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 37806048

約数和(自身を除く): 22165588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 242, 253, 281, 460, 484, 506, 562, 605, 1012, 1124, 1210, 1265, 1405, 2420, 2530, 2783, 2810, 3091, 5060, 5566, 5620, 6182, 6463, 11132, 12364, 12926, 13915, 15455, 25852, 27830, 30910, 32315, 34001, 55660, 61820, 64630, 68002, 71093, 129260, 136004, 142186, 170005, 284372, 340010, 355465, 680020, 710930, 782023, 1421860, 1564046, 3128092, 3910115, 7820230, 15640460]

約数ペア:

[(1, 15640460), (2, 7820230), (4, 3910115), (5, 3128092), (10, 1564046), (11, 1421860), (20, 782023), (22, 710930), (23, 680020), (44, 355465), (46, 340010), (55, 284372), (92, 170005), (110, 142186), (115, 136004), (121, 129260), (220, 71093), (230, 68002), (242, 64630), (253, 61820), (281, 55660), (460, 34001), (484, 32315), (506, 30910), (562, 27830), (605, 25852), (1012, 15455), (1124, 13915), (1210, 12926), (1265, 12364), (1405, 11132), (2420, 6463), (2530, 6182), (2783, 5620), (2810, 5566), (3091, 5060)]