123968505

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{919}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 219784320

約数和(自身を除く): 95815815

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 529, 919, 1173, 1587, 1955, 2645, 2757, 4595, 5865, 7935, 8993, 13785, 15623, 21137, 26979, 44965, 46869, 63411, 78115, 105685, 134895, 234345, 317055, 359329, 486151, 1077987, 1458453, 1796645, 2430755, 5389935, 7292265, 8264567, 24793701, 41322835, 123968505]

約数ペア:

[(1, 123968505), (3, 41322835), (5, 24793701), (15, 8264567), (17, 7292265), (23, 5389935), (51, 2430755), (69, 1796645), (85, 1458453), (115, 1077987), (255, 486151), (345, 359329), (391, 317055), (529, 234345), (919, 134895), (1173, 105685), (1587, 78115), (1955, 63411), (2645, 46869), (2757, 44965), (4595, 26979), (5865, 21137), (7935, 15623), (8993, 13785)]