256563762

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:384

約数の個数: 128

約数和(自身を含む): 676988928

約数和(自身を除く): 420425166

約数列:

[1, 2, 3, 6, 7, 13, 14, 17, 21, 26, 34, 39, 42, 51, 78, 91, 102, 119, 131, 182, 211, 221, 238, 262, 273, 357, 393, 422, 442, 546, 633, 663, 714, 786, 917, 1266, 1326, 1477, 1547, 1703, 1834, 2227, 2743, 2751, 2954, 3094, 3406, 3587, 4431, 4454, 4641, 5109, 5486, 5502, 6681, 7174, 8229, 8862, 9282, 10218, 10761, 11921, 13362, 15589, 16458, 19201, 21522, 23842, 25109, 27641, 28951, 31178, 35763, 38402, 46631, 46767, 50218, 55282, 57603, 57902, 71526, 75327, 82923, 86853, 93262, 93534, 115206, 139893, 150654, 165846, 173706, 193487, 202657, 279786, 326417, 359333, 386974, 405314, 469897, 580461, 607971, 652834, 718666, 939794, 979251, 1077999, 1160922, 1215942, 1409691, 1958502, 2155998, 2515331, 2819382, 3289279, 5030662, 6108661, 6578558, 7545993, 9867837, 12217322, 15091986, 18325983, 19735674, 36651966, 42760627, 85521254, 128281881, 256563762]

約数ペア:

[(1, 256563762), (2, 128281881), (3, 85521254), (6, 42760627), (7, 36651966), (13, 19735674), (14, 18325983), (17, 15091986), (21, 12217322), (26, 9867837), (34, 7545993), (39, 6578558), (42, 6108661), (51, 5030662), (78, 3289279), (91, 2819382), (102, 2515331), (119, 2155998), (131, 1958502), (182, 1409691), (211, 1215942), (221, 1160922), (238, 1077999), (262, 979251), (273, 939794), (357, 718666), (393, 652834), (422, 607971), (442, 580461), (546, 469897), (633, 405314), (663, 386974), (714, 359333), (786, 326417), (917, 279786), (1266, 202657), (1326, 193487), (1477, 173706), (1547, 165846), (1703, 150654), (1834, 139893), (2227, 115206), (2743, 93534), (2751, 93262), (2954, 86853), (3094, 82923), (3406, 75327), (3587, 71526), (4431, 57902), (4454, 57603), (4641, 55282), (5109, 50218), (5486, 46767), (5502, 46631), (6681, 38402), (7174, 35763), (8229, 31178), (8862, 28951), (9282, 27641), (10218, 25109), (10761, 23842), (11921, 21522), (13362, 19201), (15589, 16458)]