20173644575

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{881}}^1$

素因数の和:1137

約数の個数: 96

約数和(自身を含む): 31183004160

約数和(自身を除く): 11009359585

約数列:

[1, 5, 7, 17, 25, 35, 43, 85, 119, 175, 179, 215, 301, 425, 595, 731, 881, 895, 1075, 1253, 1505, 2975, 3043, 3655, 4405, 4475, 5117, 6167, 6265, 7525, 7697, 14977, 15215, 18275, 21301, 22025, 25585, 30835, 31325, 37883, 38485, 53879, 74885, 76075, 104839, 106505, 127925, 130849, 154175, 157699, 189415, 192425, 265181, 269395, 374425, 524195, 532525, 644011, 654245, 788495, 915943, 947075, 1103893, 1325905, 1346975, 2620975, 2680883, 3220055, 3271225, 3942475, 4508077, 4579715, 5519465, 6629525, 6781057, 13404415, 16100275, 18766181, 22540385, 22898575, 27597325, 33905285, 47467399, 67022075, 93830905, 112701925, 115277969, 169526425, 237336995, 469154525, 576389845, 806945783, 1186684975, 2881949225, 4034728915, 20173644575]

約数ペア:

[(1, 20173644575), (5, 4034728915), (7, 2881949225), (17, 1186684975), (25, 806945783), (35, 576389845), (43, 469154525), (85, 237336995), (119, 169526425), (175, 115277969), (179, 112701925), (215, 93830905), (301, 67022075), (425, 47467399), (595, 33905285), (731, 27597325), (881, 22898575), (895, 22540385), (1075, 18766181), (1253, 16100275), (1505, 13404415), (2975, 6781057), (3043, 6629525), (3655, 5519465), (4405, 4579715), (4475, 4508077), (5117, 3942475), (6167, 3271225), (6265, 3220055), (7525, 2680883), (7697, 2620975), (14977, 1346975), (15215, 1325905), (18275, 1103893), (21301, 947075), (22025, 915943), (25585, 788495), (30835, 654245), (31325, 644011), (37883, 532525), (38485, 524195), (53879, 374425), (74885, 269395), (76075, 265181), (104839, 192425), (106505, 189415), (127925, 157699), (130849, 154175)]