31426980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{937}}^1$

素因数の和:1005

約数の個数: 96

約数和(自身を含む): 97071744

約数和(自身を除く): 65644764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 43, 52, 60, 65, 78, 86, 129, 130, 156, 172, 195, 215, 258, 260, 390, 430, 516, 559, 645, 780, 860, 937, 1118, 1290, 1677, 1874, 2236, 2580, 2795, 2811, 3354, 3748, 4685, 5590, 5622, 6708, 8385, 9370, 11180, 11244, 12181, 14055, 16770, 18740, 24362, 28110, 33540, 36543, 40291, 48724, 56220, 60905, 73086, 80582, 120873, 121810, 146172, 161164, 182715, 201455, 241746, 243620, 365430, 402910, 483492, 523783, 604365, 730860, 805820, 1047566, 1208730, 1571349, 2095132, 2417460, 2618915, 3142698, 5237830, 6285396, 7856745, 10475660, 15713490, 31426980]

約数ペア:

[(1, 31426980), (2, 15713490), (3, 10475660), (4, 7856745), (5, 6285396), (6, 5237830), (10, 3142698), (12, 2618915), (13, 2417460), (15, 2095132), (20, 1571349), (26, 1208730), (30, 1047566), (39, 805820), (43, 730860), (52, 604365), (60, 523783), (65, 483492), (78, 402910), (86, 365430), (129, 243620), (130, 241746), (156, 201455), (172, 182715), (195, 161164), (215, 146172), (258, 121810), (260, 120873), (390, 80582), (430, 73086), (516, 60905), (559, 56220), (645, 48724), (780, 40291), (860, 36543), (937, 33540), (1118, 28110), (1290, 24362), (1677, 18740), (1874, 16770), (2236, 14055), (2580, 12181), (2795, 11244), (2811, 11180), (3354, 9370), (3748, 8385), (4685, 6708), (5590, 5622)]