399994686

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:708

約数の個数: 160

約数和(自身を含む): 1130562048

約数和(自身を除く): 730567362

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 43, 54, 63, 78, 81, 86, 91, 117, 126, 129, 162, 182, 189, 234, 258, 273, 301, 351, 378, 387, 546, 559, 567, 602, 631, 702, 774, 819, 903, 1053, 1118, 1134, 1161, 1262, 1638, 1677, 1806, 1893, 2106, 2322, 2457, 2709, 3354, 3483, 3786, 3913, 4417, 4914, 5031, 5418, 5679, 6966, 7371, 7826, 8127, 8203, 8834, 10062, 11358, 11739, 13251, 14742, 15093, 16254, 16406, 17037, 23478, 24381, 24609, 26502, 27133, 30186, 34074, 35217, 39753, 45279, 48762, 49218, 51111, 54266, 57421, 70434, 73827, 79506, 81399, 90558, 102222, 105651, 114842, 119259, 147654, 162798, 172263, 189931, 211302, 221481, 238518, 244197, 316953, 344526, 352729, 357777, 379862, 442962, 488394, 516789, 569793, 633906, 664443, 705458, 715554, 732591, 1033578, 1058187, 1139586, 1328886, 1465182, 1550367, 1709379, 2116374, 2197773, 2469103, 3100734, 3174561, 3418758, 4395546, 4651101, 4938206, 5128137, 6349122, 7407309, 9302202, 9523683, 10256274, 14814618, 15384411, 19047366, 22221927, 28571049, 30768822, 44443854, 57142098, 66665781, 133331562, 199997343, 399994686]

約数ペア:

[(1, 399994686), (2, 199997343), (3, 133331562), (6, 66665781), (7, 57142098), (9, 44443854), (13, 30768822), (14, 28571049), (18, 22221927), (21, 19047366), (26, 15384411), (27, 14814618), (39, 10256274), (42, 9523683), (43, 9302202), (54, 7407309), (63, 6349122), (78, 5128137), (81, 4938206), (86, 4651101), (91, 4395546), (117, 3418758), (126, 3174561), (129, 3100734), (162, 2469103), (182, 2197773), (189, 2116374), (234, 1709379), (258, 1550367), (273, 1465182), (301, 1328886), (351, 1139586), (378, 1058187), (387, 1033578), (546, 732591), (559, 715554), (567, 705458), (602, 664443), (631, 633906), (702, 569793), (774, 516789), (819, 488394), (903, 442962), (1053, 379862), (1118, 357777), (1134, 352729), (1161, 344526), (1262, 316953), (1638, 244197), (1677, 238518), (1806, 221481), (1893, 211302), (2106, 189931), (2322, 172263), (2457, 162798), (2709, 147654), (3354, 119259), (3483, 114842), (3786, 105651), (3913, 102222), (4417, 90558), (4914, 81399), (5031, 79506), (5418, 73827), (5679, 70434), (6966, 57421), (7371, 54266), (7826, 51111), (8127, 49218), (8203, 48762), (8834, 45279), (10062, 39753), (11358, 35217), (11739, 34074), (13251, 30186), (14742, 27133), (15093, 26502), (16254, 24609), (16406, 24381), (17037, 23478)]