1990502040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{761}}^1$

素因数の和:1153

約数の個数: 128

約数和(自身を含む): 6083320320

約数和(自身を除く): 4092818280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 307, 355, 426, 568, 614, 710, 761, 852, 921, 1065, 1228, 1420, 1522, 1535, 1704, 1842, 2130, 2283, 2456, 2840, 3044, 3070, 3684, 3805, 4260, 4566, 4605, 6088, 6140, 7368, 7610, 8520, 9132, 9210, 11415, 12280, 15220, 18264, 18420, 21797, 22830, 30440, 36840, 43594, 45660, 54031, 65391, 87188, 91320, 108062, 108985, 130782, 162093, 174376, 216124, 217970, 233627, 261564, 270155, 324186, 326955, 432248, 435940, 467254, 523128, 540310, 648372, 653910, 700881, 810465, 871880, 934508, 1080620, 1168135, 1296744, 1307820, 1401762, 1620930, 1869016, 2161240, 2336270, 2615640, 2803524, 3241860, 3504405, 4672540, 5607048, 6483720, 7008810, 9345080, 14017620, 16587517, 28035240, 33175034, 49762551, 66350068, 82937585, 99525102, 132700136, 165875170, 199050204, 248812755, 331750340, 398100408, 497625510, 663500680, 995251020, 1990502040]

約数ペア:

[(1, 1990502040), (2, 995251020), (3, 663500680), (4, 497625510), (5, 398100408), (6, 331750340), (8, 248812755), (10, 199050204), (12, 165875170), (15, 132700136), (20, 99525102), (24, 82937585), (30, 66350068), (40, 49762551), (60, 33175034), (71, 28035240), (120, 16587517), (142, 14017620), (213, 9345080), (284, 7008810), (307, 6483720), (355, 5607048), (426, 4672540), (568, 3504405), (614, 3241860), (710, 2803524), (761, 2615640), (852, 2336270), (921, 2161240), (1065, 1869016), (1228, 1620930), (1420, 1401762), (1522, 1307820), (1535, 1296744), (1704, 1168135), (1842, 1080620), (2130, 934508), (2283, 871880), (2456, 810465), (2840, 700881), (3044, 653910), (3070, 648372), (3684, 540310), (3805, 523128), (4260, 467254), (4566, 435940), (4605, 432248), (6088, 326955), (6140, 324186), (7368, 270155), (7610, 261564), (8520, 233627), (9132, 217970), (9210, 216124), (11415, 174376), (12280, 162093), (15220, 130782), (18264, 108985), (18420, 108062), (21797, 91320), (22830, 87188), (30440, 65391), (36840, 54031), (43594, 45660)]