20249715280

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{19157}}^1$

素因数の和:19424

約数の個数: 80

約数和(自身を含む): 47991709584

約数和(自身を除く): 27741994304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 181, 292, 362, 365, 584, 724, 730, 905, 1168, 1448, 1460, 1810, 2896, 2920, 3620, 5840, 7240, 13213, 14480, 19157, 26426, 38314, 52852, 66065, 76628, 95785, 105704, 132130, 153256, 191570, 211408, 264260, 306512, 383140, 528520, 766280, 1057040, 1398461, 1532560, 2796922, 3467417, 5593844, 6934834, 6992305, 11187688, 13869668, 13984610, 17337085, 22375376, 27739336, 27969220, 34674170, 55478672, 55938440, 69348340, 111876880, 138696680, 253121441, 277393360, 506242882, 1012485764, 1265607205, 2024971528, 2531214410, 4049943056, 5062428820, 10124857640, 20249715280]

約数ペア:

[(1, 20249715280), (2, 10124857640), (4, 5062428820), (5, 4049943056), (8, 2531214410), (10, 2024971528), (16, 1265607205), (20, 1012485764), (40, 506242882), (73, 277393360), (80, 253121441), (146, 138696680), (181, 111876880), (292, 69348340), (362, 55938440), (365, 55478672), (584, 34674170), (724, 27969220), (730, 27739336), (905, 22375376), (1168, 17337085), (1448, 13984610), (1460, 13869668), (1810, 11187688), (2896, 6992305), (2920, 6934834), (3620, 5593844), (5840, 3467417), (7240, 2796922), (13213, 1532560), (14480, 1398461), (19157, 1057040), (26426, 766280), (38314, 528520), (52852, 383140), (66065, 306512), (76628, 264260), (95785, 211408), (105704, 191570), (132130, 153256)]