40196780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 97843200

約数和(自身を除く): 57646420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 79, 95, 103, 130, 158, 190, 206, 247, 260, 316, 380, 395, 412, 494, 515, 790, 988, 1027, 1030, 1235, 1339, 1501, 1580, 1957, 2054, 2060, 2470, 2678, 3002, 3914, 4108, 4940, 5135, 5356, 6004, 6695, 7505, 7828, 8137, 9785, 10270, 13390, 15010, 16274, 19513, 19570, 20540, 25441, 26780, 30020, 32548, 39026, 39140, 40685, 50882, 78052, 81370, 97565, 101764, 105781, 127205, 154603, 162740, 195130, 211562, 254410, 309206, 390260, 423124, 508820, 528905, 618412, 773015, 1057810, 1546030, 2009839, 2115620, 3092060, 4019678, 8039356, 10049195, 20098390, 40196780]

約数ペア:

[(1, 40196780), (2, 20098390), (4, 10049195), (5, 8039356), (10, 4019678), (13, 3092060), (19, 2115620), (20, 2009839), (26, 1546030), (38, 1057810), (52, 773015), (65, 618412), (76, 528905), (79, 508820), (95, 423124), (103, 390260), (130, 309206), (158, 254410), (190, 211562), (206, 195130), (247, 162740), (260, 154603), (316, 127205), (380, 105781), (395, 101764), (412, 97565), (494, 81370), (515, 78052), (790, 50882), (988, 40685), (1027, 39140), (1030, 39026), (1235, 32548), (1339, 30020), (1501, 26780), (1580, 25441), (1957, 20540), (2054, 19570), (2060, 19513), (2470, 16274), (2678, 15010), (3002, 13390), (3914, 10270), (4108, 9785), (4940, 8137), (5135, 7828), (5356, 7505), (6004, 6695)]