123647220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22159}}^1$

素因数の和:22205

約数の個数: 72

約数和(自身を含む): 387179520

約数和(自身を除く): 263532300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 22159, 44318, 66477, 88636, 110795, 132954, 199431, 221590, 265908, 332385, 398862, 443180, 664770, 686929, 797724, 997155, 1329540, 1373858, 1994310, 2060787, 2747716, 3434645, 3988620, 4121574, 6182361, 6869290, 8243148, 10303935, 12364722, 13738580, 20607870, 24729444, 30911805, 41215740, 61823610, 123647220]

約数ペア:

[(1, 123647220), (2, 61823610), (3, 41215740), (4, 30911805), (5, 24729444), (6, 20607870), (9, 13738580), (10, 12364722), (12, 10303935), (15, 8243148), (18, 6869290), (20, 6182361), (30, 4121574), (31, 3988620), (36, 3434645), (45, 2747716), (60, 2060787), (62, 1994310), (90, 1373858), (93, 1329540), (124, 997155), (155, 797724), (180, 686929), (186, 664770), (279, 443180), (310, 398862), (372, 332385), (465, 265908), (558, 221590), (620, 199431), (930, 132954), (1116, 110795), (1395, 88636), (1860, 66477), (2790, 44318), (5580, 22159)]