40416020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 87127488

約数和(自身を除く): 46711468

約数列:

[1, 2, 4, 5, 10, 20, 83, 97, 166, 194, 251, 332, 388, 415, 485, 502, 830, 970, 1004, 1255, 1660, 1940, 2510, 5020, 8051, 16102, 20833, 24347, 32204, 40255, 41666, 48694, 80510, 83332, 97388, 104165, 121735, 161020, 208330, 243470, 416660, 486940, 2020801, 4041602, 8083204, 10104005, 20208010, 40416020]

約数ペア:

[(1, 40416020), (2, 20208010), (4, 10104005), (5, 8083204), (10, 4041602), (20, 2020801), (83, 486940), (97, 416660), (166, 243470), (194, 208330), (251, 161020), (332, 121735), (388, 104165), (415, 97388), (485, 83332), (502, 80510), (830, 48694), (970, 41666), (1004, 40255), (1255, 32204), (1660, 24347), (1940, 20833), (2510, 16102), (5020, 8051)]