15431325

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:76

約数の個数: 144

約数和(自身を含む): 35622720

約数和(自身を除く): 20191395

約数列:

[1, 3, 5, 7, 13, 15, 17, 19, 21, 25, 35, 39, 49, 51, 57, 65, 75, 85, 91, 95, 105, 119, 133, 147, 175, 195, 221, 245, 247, 255, 273, 285, 323, 325, 357, 399, 425, 455, 475, 525, 595, 637, 663, 665, 735, 741, 833, 931, 969, 975, 1105, 1225, 1235, 1275, 1365, 1425, 1547, 1615, 1729, 1785, 1911, 1995, 2261, 2275, 2499, 2793, 2975, 3185, 3315, 3325, 3675, 3705, 4165, 4199, 4641, 4655, 4845, 5187, 5525, 6175, 6783, 6825, 7735, 8075, 8645, 8925, 9555, 9975, 10829, 11305, 12103, 12495, 12597, 13965, 15827, 15925, 16575, 18525, 20825, 20995, 23205, 23275, 24225, 25935, 29393, 32487, 33915, 36309, 38675, 43225, 47481, 47775, 54145, 56525, 60515, 62475, 62985, 69825, 79135, 88179, 104975, 116025, 129675, 146965, 162435, 169575, 181545, 205751, 237405, 270725, 302575, 314925, 395675, 440895, 617253, 734825, 812175, 907725, 1028755, 1187025, 2204475, 3086265, 5143775, 15431325]

約数ペア:

[(1, 15431325), (3, 5143775), (5, 3086265), (7, 2204475), (13, 1187025), (15, 1028755), (17, 907725), (19, 812175), (21, 734825), (25, 617253), (35, 440895), (39, 395675), (49, 314925), (51, 302575), (57, 270725), (65, 237405), (75, 205751), (85, 181545), (91, 169575), (95, 162435), (105, 146965), (119, 129675), (133, 116025), (147, 104975), (175, 88179), (195, 79135), (221, 69825), (245, 62985), (247, 62475), (255, 60515), (273, 56525), (285, 54145), (323, 47775), (325, 47481), (357, 43225), (399, 38675), (425, 36309), (455, 33915), (475, 32487), (525, 29393), (595, 25935), (637, 24225), (663, 23275), (665, 23205), (735, 20995), (741, 20825), (833, 18525), (931, 16575), (969, 15925), (975, 15827), (1105, 13965), (1225, 12597), (1235, 12495), (1275, 12103), (1365, 11305), (1425, 10829), (1547, 9975), (1615, 9555), (1729, 8925), (1785, 8645), (1911, 8075), (1995, 7735), (2261, 6825), (2275, 6783), (2499, 6175), (2793, 5525), (2975, 5187), (3185, 4845), (3315, 4655), (3325, 4641), (3675, 4199), (3705, 4165)]