29670940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{821}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 67667040

約数和(自身を除く): 37996100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 821, 1390, 1642, 1807, 2780, 3284, 3614, 4105, 7228, 8210, 9035, 10673, 16420, 18070, 21346, 36140, 42692, 53365, 106730, 114119, 213460, 228238, 456476, 570595, 1141190, 1483547, 2282380, 2967094, 5934188, 7417735, 14835470, 29670940]

約数ペア:

[(1, 29670940), (2, 14835470), (4, 7417735), (5, 5934188), (10, 2967094), (13, 2282380), (20, 1483547), (26, 1141190), (52, 570595), (65, 456476), (130, 228238), (139, 213460), (260, 114119), (278, 106730), (556, 53365), (695, 42692), (821, 36140), (1390, 21346), (1642, 18070), (1807, 16420), (2780, 10673), (3284, 9035), (3614, 8210), (4105, 7228)]