420489520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^4\times {\mathrm{359}}^1$

素因数の和:416

約数の個数: 100

約数和(自身を含む): 1078390800

約数和(自身を除く): 657901280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 359, 440, 484, 605, 718, 880, 968, 1210, 1331, 1436, 1795, 1936, 2420, 2662, 2872, 3590, 3949, 4840, 5324, 5744, 6655, 7180, 7898, 9680, 10648, 13310, 14360, 14641, 15796, 19745, 21296, 26620, 28720, 29282, 31592, 39490, 43439, 53240, 58564, 63184, 73205, 78980, 86878, 106480, 117128, 146410, 157960, 173756, 217195, 234256, 292820, 315920, 347512, 434390, 477829, 585640, 695024, 868780, 955658, 1171280, 1737560, 1911316, 2389145, 3475120, 3822632, 4778290, 5256119, 7645264, 9556580, 10512238, 19113160, 21024476, 26280595, 38226320, 42048952, 52561190, 84097904, 105122380, 210244760, 420489520]

約数ペア:

[(1, 420489520), (2, 210244760), (4, 105122380), (5, 84097904), (8, 52561190), (10, 42048952), (11, 38226320), (16, 26280595), (20, 21024476), (22, 19113160), (40, 10512238), (44, 9556580), (55, 7645264), (80, 5256119), (88, 4778290), (110, 3822632), (121, 3475120), (176, 2389145), (220, 1911316), (242, 1737560), (359, 1171280), (440, 955658), (484, 868780), (605, 695024), (718, 585640), (880, 477829), (968, 434390), (1210, 347512), (1331, 315920), (1436, 292820), (1795, 234256), (1936, 217195), (2420, 173756), (2662, 157960), (2872, 146410), (3590, 117128), (3949, 106480), (4840, 86878), (5324, 78980), (5744, 73205), (6655, 63184), (7180, 58564), (7898, 53240), (9680, 43439), (10648, 39490), (13310, 31592), (14360, 29282), (14641, 28720), (15796, 26620), (19745, 21296)]