389675890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:176

約数の個数: 96

約数和(自身を含む): 792747648

約数和(自身を除く): 403071758

約数列:

[1, 2, 5, 10, 23, 31, 41, 43, 46, 62, 82, 86, 115, 155, 205, 215, 230, 310, 410, 430, 713, 943, 961, 989, 1271, 1333, 1426, 1763, 1886, 1922, 1978, 2542, 2666, 3526, 3565, 4715, 4805, 4945, 6355, 6665, 7130, 8815, 9430, 9610, 9890, 12710, 13330, 17630, 22103, 29233, 30659, 39401, 40549, 41323, 44206, 54653, 58466, 61318, 78802, 81098, 82646, 109306, 110515, 146165, 153295, 197005, 202745, 206615, 221030, 273265, 292330, 306590, 394010, 405490, 413230, 546530, 906223, 950429, 1257019, 1694243, 1812446, 1900858, 2514038, 3388486, 4531115, 4752145, 6285095, 8471215, 9062230, 9504290, 12570190, 16942430, 38967589, 77935178, 194837945, 389675890]

約数ペア:

[(1, 389675890), (2, 194837945), (5, 77935178), (10, 38967589), (23, 16942430), (31, 12570190), (41, 9504290), (43, 9062230), (46, 8471215), (62, 6285095), (82, 4752145), (86, 4531115), (115, 3388486), (155, 2514038), (205, 1900858), (215, 1812446), (230, 1694243), (310, 1257019), (410, 950429), (430, 906223), (713, 546530), (943, 413230), (961, 405490), (989, 394010), (1271, 306590), (1333, 292330), (1426, 273265), (1763, 221030), (1886, 206615), (1922, 202745), (1978, 197005), (2542, 153295), (2666, 146165), (3526, 110515), (3565, 109306), (4715, 82646), (4805, 81098), (4945, 78802), (6355, 61318), (6665, 58466), (7130, 54653), (8815, 44206), (9430, 41323), (9610, 40549), (9890, 39401), (12710, 30659), (13330, 29233), (17630, 22103)]