218363440

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 520279200

約数和(自身を除く): 301915760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 139, 146, 269, 278, 292, 365, 538, 556, 584, 695, 730, 1076, 1112, 1168, 1345, 1390, 1460, 2152, 2224, 2690, 2780, 2920, 4304, 5380, 5560, 5840, 10147, 10760, 11120, 19637, 20294, 21520, 37391, 39274, 40588, 50735, 74782, 78548, 81176, 98185, 101470, 149564, 157096, 162352, 186955, 196370, 202940, 299128, 314192, 373910, 392740, 405880, 598256, 747820, 785480, 811760, 1495640, 1570960, 2729543, 2991280, 5459086, 10918172, 13647715, 21836344, 27295430, 43672688, 54590860, 109181720, 218363440]

約数ペア:

[(1, 218363440), (2, 109181720), (4, 54590860), (5, 43672688), (8, 27295430), (10, 21836344), (16, 13647715), (20, 10918172), (40, 5459086), (73, 2991280), (80, 2729543), (139, 1570960), (146, 1495640), (269, 811760), (278, 785480), (292, 747820), (365, 598256), (538, 405880), (556, 392740), (584, 373910), (695, 314192), (730, 299128), (1076, 202940), (1112, 196370), (1168, 186955), (1345, 162352), (1390, 157096), (1460, 149564), (2152, 101470), (2224, 98185), (2690, 81176), (2780, 78548), (2920, 74782), (4304, 50735), (5380, 40588), (5560, 39274), (5840, 37391), (10147, 21520), (10760, 20294), (11120, 19637)]