20693660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 30109540

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 59, 65, 71, 76, 95, 118, 130, 142, 190, 236, 247, 260, 284, 295, 355, 380, 494, 590, 710, 767, 923, 988, 1121, 1180, 1235, 1349, 1420, 1534, 1846, 2242, 2470, 2698, 3068, 3692, 3835, 4189, 4484, 4615, 4940, 5396, 5605, 6745, 7670, 8378, 9230, 11210, 13490, 14573, 15340, 16756, 17537, 18460, 20945, 22420, 26980, 29146, 35074, 41890, 54457, 58292, 70148, 72865, 79591, 83780, 87685, 108914, 145730, 159182, 175370, 217828, 272285, 291460, 318364, 350740, 397955, 544570, 795910, 1034683, 1089140, 1591820, 2069366, 4138732, 5173415, 10346830, 20693660]

約数ペア:

[(1, 20693660), (2, 10346830), (4, 5173415), (5, 4138732), (10, 2069366), (13, 1591820), (19, 1089140), (20, 1034683), (26, 795910), (38, 544570), (52, 397955), (59, 350740), (65, 318364), (71, 291460), (76, 272285), (95, 217828), (118, 175370), (130, 159182), (142, 145730), (190, 108914), (236, 87685), (247, 83780), (260, 79591), (284, 72865), (295, 70148), (355, 58292), (380, 54457), (494, 41890), (590, 35074), (710, 29146), (767, 26980), (923, 22420), (988, 20945), (1121, 18460), (1180, 17537), (1235, 16756), (1349, 15340), (1420, 14573), (1534, 13490), (1846, 11210), (2242, 9230), (2470, 8378), (2698, 7670), (3068, 6745), (3692, 5605), (3835, 5396), (4189, 4940), (4484, 4615)]