29873740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1291}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 68372640

約数和(自身を除く): 38498900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1291, 1780, 2314, 2582, 4628, 5164, 5785, 6455, 11570, 12910, 16783, 23140, 25820, 33566, 67132, 83915, 114899, 167830, 229798, 335660, 459596, 574495, 1148990, 1493687, 2297980, 2987374, 5974748, 7468435, 14936870, 29873740]

約数ペア:

[(1, 29873740), (2, 14936870), (4, 7468435), (5, 5974748), (10, 2987374), (13, 2297980), (20, 1493687), (26, 1148990), (52, 574495), (65, 459596), (89, 335660), (130, 229798), (178, 167830), (260, 114899), (356, 83915), (445, 67132), (890, 33566), (1157, 25820), (1291, 23140), (1780, 16783), (2314, 12910), (2582, 11570), (4628, 6455), (5164, 5785)]