28234180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{113}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 66562776

約数和(自身を除く): 38328596

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 113, 124, 130, 155, 226, 260, 310, 403, 452, 565, 620, 806, 961, 1130, 1469, 1612, 1922, 2015, 2260, 2938, 3503, 3844, 4030, 4805, 5876, 7006, 7345, 8060, 9610, 12493, 14012, 14690, 17515, 19220, 24986, 29380, 35030, 45539, 49972, 62465, 70060, 91078, 108593, 124930, 182156, 217186, 227695, 249860, 434372, 455390, 542965, 910780, 1085930, 1411709, 2171860, 2823418, 5646836, 7058545, 14117090, 28234180]

約数ペア:

[(1, 28234180), (2, 14117090), (4, 7058545), (5, 5646836), (10, 2823418), (13, 2171860), (20, 1411709), (26, 1085930), (31, 910780), (52, 542965), (62, 455390), (65, 434372), (113, 249860), (124, 227695), (130, 217186), (155, 182156), (226, 124930), (260, 108593), (310, 91078), (403, 70060), (452, 62465), (565, 49972), (620, 45539), (806, 35030), (961, 29380), (1130, 24986), (1469, 19220), (1612, 17515), (1922, 14690), (2015, 14012), (2260, 12493), (2938, 9610), (3503, 8060), (3844, 7345), (4030, 7006), (4805, 5876)]