18845775

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 38591280

約数和(自身を除く): 19745505

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 85, 117, 153, 195, 221, 225, 255, 325, 379, 425, 585, 663, 765, 975, 1105, 1137, 1275, 1895, 1989, 2925, 3315, 3411, 3825, 4927, 5525, 5685, 6443, 9475, 9945, 14781, 16575, 17055, 19329, 24635, 28425, 32215, 44343, 49725, 57987, 73905, 83759, 85275, 96645, 123175, 161075, 221715, 251277, 289935, 369525, 418795, 483225, 753831, 1108575, 1256385, 1449675, 2093975, 3769155, 6281925, 18845775]

約数ペア:

[(1, 18845775), (3, 6281925), (5, 3769155), (9, 2093975), (13, 1449675), (15, 1256385), (17, 1108575), (25, 753831), (39, 483225), (45, 418795), (51, 369525), (65, 289935), (75, 251277), (85, 221715), (117, 161075), (153, 123175), (195, 96645), (221, 85275), (225, 83759), (255, 73905), (325, 57987), (379, 49725), (425, 44343), (585, 32215), (663, 28425), (765, 24635), (975, 19329), (1105, 17055), (1137, 16575), (1275, 14781), (1895, 9945), (1989, 9475), (2925, 6443), (3315, 5685), (3411, 5525), (3825, 4927)]