138389620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 319915008

約数和(自身を除く): 181525388

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 47, 74, 92, 94, 115, 148, 173, 185, 188, 230, 235, 346, 370, 460, 470, 692, 740, 851, 865, 940, 1081, 1702, 1730, 1739, 2162, 3404, 3460, 3478, 3979, 4255, 4324, 5405, 6401, 6956, 7958, 8131, 8510, 8695, 10810, 12802, 15916, 16262, 17020, 17390, 19895, 21620, 25604, 32005, 32524, 34780, 39790, 39997, 40655, 64010, 79580, 79994, 81310, 128020, 147223, 159988, 162620, 187013, 199985, 294446, 300847, 374026, 399970, 588892, 601694, 736115, 748052, 799940, 935065, 1203388, 1472230, 1504235, 1870130, 2944460, 3008470, 3740260, 6016940, 6919481, 13838962, 27677924, 34597405, 69194810, 138389620]

約数ペア:

[(1, 138389620), (2, 69194810), (4, 34597405), (5, 27677924), (10, 13838962), (20, 6919481), (23, 6016940), (37, 3740260), (46, 3008470), (47, 2944460), (74, 1870130), (92, 1504235), (94, 1472230), (115, 1203388), (148, 935065), (173, 799940), (185, 748052), (188, 736115), (230, 601694), (235, 588892), (346, 399970), (370, 374026), (460, 300847), (470, 294446), (692, 199985), (740, 187013), (851, 162620), (865, 159988), (940, 147223), (1081, 128020), (1702, 81310), (1730, 79994), (1739, 79580), (2162, 64010), (3404, 40655), (3460, 39997), (3478, 39790), (3979, 34780), (4255, 32524), (4324, 32005), (5405, 25604), (6401, 21620), (6956, 19895), (7958, 17390), (8131, 17020), (8510, 16262), (8695, 15916), (10810, 12802)]