145474940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{18049}}^1$

素因数の和:18102

約数の個数: 48

約数和(自身を含む): 339628800

約数和(自身を除く): 194153860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 18049, 36098, 72196, 90245, 180490, 234637, 360980, 469274, 559519, 938548, 1119038, 1173185, 2238076, 2346370, 2797595, 4692740, 5595190, 7273747, 11190380, 14547494, 29094988, 36368735, 72737470, 145474940]

約数ペア:

[(1, 145474940), (2, 72737470), (4, 36368735), (5, 29094988), (10, 14547494), (13, 11190380), (20, 7273747), (26, 5595190), (31, 4692740), (52, 2797595), (62, 2346370), (65, 2238076), (124, 1173185), (130, 1119038), (155, 938548), (260, 559519), (310, 469274), (403, 360980), (620, 234637), (806, 180490), (1612, 90245), (2015, 72196), (4030, 36098), (8060, 18049)]