78912860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{631}}^1$

素因数の和:703

約数の個数: 72

約数和(自身を含む): 184586976

約数和(自身を除く): 105674116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 169, 185, 260, 338, 370, 481, 631, 676, 740, 845, 962, 1262, 1690, 1924, 2405, 2524, 3155, 3380, 4810, 6253, 6310, 8203, 9620, 12506, 12620, 16406, 23347, 25012, 31265, 32812, 41015, 46694, 62530, 82030, 93388, 106639, 116735, 125060, 164060, 213278, 233470, 303511, 426556, 466940, 533195, 607022, 1066390, 1214044, 1517555, 2132780, 3035110, 3945643, 6070220, 7891286, 15782572, 19728215, 39456430, 78912860]

約数ペア:

[(1, 78912860), (2, 39456430), (4, 19728215), (5, 15782572), (10, 7891286), (13, 6070220), (20, 3945643), (26, 3035110), (37, 2132780), (52, 1517555), (65, 1214044), (74, 1066390), (130, 607022), (148, 533195), (169, 466940), (185, 426556), (260, 303511), (338, 233470), (370, 213278), (481, 164060), (631, 125060), (676, 116735), (740, 106639), (845, 93388), (962, 82030), (1262, 62530), (1690, 46694), (1924, 41015), (2405, 32812), (2524, 31265), (3155, 25012), (3380, 23347), (4810, 16406), (6253, 12620), (6310, 12506), (8203, 9620)]