2780115120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89797}}^1$

素因数の和:89859

約数の個数: 120

約数和(自身を含む): 9553788816

約数和(自身を除く): 6773673696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 688, 720, 774, 860, 1032, 1290, 1548, 1720, 1935, 2064, 2580, 3096, 3440, 3870, 5160, 6192, 7740, 10320, 15480, 30960, 89797, 179594, 269391, 359188, 448985, 538782, 718376, 808173, 897970, 1077564, 1346955, 1436752, 1616346, 1795940, 2155128, 2693910, 3232692, 3591880, 3861271, 4040865, 4310256, 5387820, 6465384, 7183760, 7722542, 8081730, 10775640, 11583813, 12930768, 15445084, 16163460, 19306355, 21551280, 23167626, 30890168, 32326920, 34751439, 38612710, 46335252, 57919065, 61780336, 64653840, 69502878, 77225420, 92670504, 115838130, 139005756, 154450840, 173757195, 185341008, 231676260, 278011512, 308901680, 347514390, 463352520, 556023024, 695028780, 926705040, 1390057560, 2780115120]

約数ペア:

[(1, 2780115120), (2, 1390057560), (3, 926705040), (4, 695028780), (5, 556023024), (6, 463352520), (8, 347514390), (9, 308901680), (10, 278011512), (12, 231676260), (15, 185341008), (16, 173757195), (18, 154450840), (20, 139005756), (24, 115838130), (30, 92670504), (36, 77225420), (40, 69502878), (43, 64653840), (45, 61780336), (48, 57919065), (60, 46335252), (72, 38612710), (80, 34751439), (86, 32326920), (90, 30890168), (120, 23167626), (129, 21551280), (144, 19306355), (172, 16163460), (180, 15445084), (215, 12930768), (240, 11583813), (258, 10775640), (344, 8081730), (360, 7722542), (387, 7183760), (430, 6465384), (516, 5387820), (645, 4310256), (688, 4040865), (720, 3861271), (774, 3591880), (860, 3232692), (1032, 2693910), (1290, 2155128), (1548, 1795940), (1720, 1616346), (1935, 1436752), (2064, 1346955), (2580, 1077564), (3096, 897970), (3440, 808173), (3870, 718376), (5160, 538782), (6192, 448985), (7740, 359188), (10320, 269391), (15480, 179594), (30960, 89797)]