123421920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1068

約数の個数: 96

約数和(自身を含む): 390368160

約数和(自身を除く): 266946240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 389, 480, 661, 778, 1167, 1322, 1556, 1945, 1983, 2334, 2644, 3112, 3305, 3890, 3966, 4668, 5288, 5835, 6224, 6610, 7780, 7932, 9336, 9915, 10576, 11670, 12448, 13220, 15560, 15864, 18672, 19830, 21152, 23340, 26440, 31120, 31728, 37344, 39660, 46680, 52880, 62240, 63456, 79320, 93360, 105760, 158640, 186720, 257129, 317280, 514258, 771387, 1028516, 1285645, 1542774, 2057032, 2571290, 3085548, 3856935, 4114064, 5142580, 6171096, 7713870, 8228128, 10285160, 12342192, 15427740, 20570320, 24684384, 30855480, 41140640, 61710960, 123421920]

約数ペア:

[(1, 123421920), (2, 61710960), (3, 41140640), (4, 30855480), (5, 24684384), (6, 20570320), (8, 15427740), (10, 12342192), (12, 10285160), (15, 8228128), (16, 7713870), (20, 6171096), (24, 5142580), (30, 4114064), (32, 3856935), (40, 3085548), (48, 2571290), (60, 2057032), (80, 1542774), (96, 1285645), (120, 1028516), (160, 771387), (240, 514258), (389, 317280), (480, 257129), (661, 186720), (778, 158640), (1167, 105760), (1322, 93360), (1556, 79320), (1945, 63456), (1983, 62240), (2334, 52880), (2644, 46680), (3112, 39660), (3305, 37344), (3890, 31728), (3966, 31120), (4668, 26440), (5288, 23340), (5835, 21152), (6224, 19830), (6610, 18672), (7780, 15864), (7932, 15560), (9336, 13220), (9915, 12448), (10576, 11670)]