72356440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{401}}^1$

素因数の和:772

約数の個数: 64

約数和(自身を含む): 176268960

約数和(自身を除く): 103912520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 347, 401, 520, 694, 802, 1388, 1604, 1735, 2005, 2776, 3208, 3470, 4010, 4511, 5213, 6940, 8020, 9022, 10426, 13880, 16040, 18044, 20852, 22555, 26065, 36088, 41704, 45110, 52130, 90220, 104260, 139147, 180440, 208520, 278294, 556588, 695735, 1113176, 1391470, 1808911, 2782940, 3617822, 5565880, 7235644, 9044555, 14471288, 18089110, 36178220, 72356440]

約数ペア:

[(1, 72356440), (2, 36178220), (4, 18089110), (5, 14471288), (8, 9044555), (10, 7235644), (13, 5565880), (20, 3617822), (26, 2782940), (40, 1808911), (52, 1391470), (65, 1113176), (104, 695735), (130, 556588), (260, 278294), (347, 208520), (401, 180440), (520, 139147), (694, 104260), (802, 90220), (1388, 52130), (1604, 45110), (1735, 41704), (2005, 36088), (2776, 26065), (3208, 22555), (3470, 20852), (4010, 18044), (4511, 16040), (5213, 13880), (6940, 10426), (8020, 9022)]