31123300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 73823400

約数和(自身を除く): 42700100

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 89, 100, 130, 178, 260, 269, 325, 356, 445, 538, 650, 890, 1076, 1157, 1300, 1345, 1780, 2225, 2314, 2690, 3497, 4450, 4628, 5380, 5785, 6725, 6994, 8900, 11570, 13450, 13988, 17485, 23140, 23941, 26900, 28925, 34970, 47882, 57850, 69940, 87425, 95764, 115700, 119705, 174850, 239410, 311233, 349700, 478820, 598525, 622466, 1197050, 1244932, 1556165, 2394100, 3112330, 6224660, 7780825, 15561650, 31123300]

約数ペア:

[(1, 31123300), (2, 15561650), (4, 7780825), (5, 6224660), (10, 3112330), (13, 2394100), (20, 1556165), (25, 1244932), (26, 1197050), (50, 622466), (52, 598525), (65, 478820), (89, 349700), (100, 311233), (130, 239410), (178, 174850), (260, 119705), (269, 115700), (325, 95764), (356, 87425), (445, 69940), (538, 57850), (650, 47882), (890, 34970), (1076, 28925), (1157, 26900), (1300, 23941), (1345, 23140), (1780, 17485), (2225, 13988), (2314, 13450), (2690, 11570), (3497, 8900), (4450, 6994), (4628, 6725), (5380, 5785)]