42645740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 92673504

約数和(自身を除く): 50027764

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 131, 164, 205, 262, 397, 410, 524, 655, 794, 820, 1310, 1588, 1985, 2620, 3970, 5371, 7940, 10742, 16277, 21484, 26855, 32554, 52007, 53710, 65108, 81385, 104014, 107420, 162770, 208028, 260035, 325540, 520070, 1040140, 2132287, 4264574, 8529148, 10661435, 21322870, 42645740]

約数ペア:

[(1, 42645740), (2, 21322870), (4, 10661435), (5, 8529148), (10, 4264574), (20, 2132287), (41, 1040140), (82, 520070), (131, 325540), (164, 260035), (205, 208028), (262, 162770), (397, 107420), (410, 104014), (524, 81385), (655, 65108), (794, 53710), (820, 52007), (1310, 32554), (1588, 26855), (1985, 21484), (2620, 16277), (3970, 10742), (5371, 7940)]