996988520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3847}}^1$

素因数の和:3919

約数の個数: 128

約数和(自身を含む): 2659737600

約数和(自身を除く): 1662749080

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 31, 38, 40, 44, 55, 62, 76, 88, 95, 110, 124, 152, 155, 190, 209, 220, 248, 310, 341, 380, 418, 440, 589, 620, 682, 760, 836, 1045, 1178, 1240, 1364, 1672, 1705, 2090, 2356, 2728, 2945, 3410, 3847, 4180, 4712, 5890, 6479, 6820, 7694, 8360, 11780, 12958, 13640, 15388, 19235, 23560, 25916, 30776, 32395, 38470, 42317, 51832, 64790, 73093, 76940, 84634, 119257, 129580, 146186, 153880, 169268, 211585, 238514, 259160, 292372, 338536, 365465, 423170, 477028, 584744, 596285, 730930, 804023, 846340, 954056, 1192570, 1311827, 1461860, 1608046, 1692680, 2265883, 2385140, 2623654, 2923720, 3216092, 4020115, 4531766, 4770280, 5247308, 6432184, 6559135, 8040230, 9063532, 10494616, 11329415, 13118270, 16080460, 18127064, 22658830, 24924713, 26236540, 32160920, 45317660, 49849426, 52473080, 90635320, 99698852, 124623565, 199397704, 249247130, 498494260, 996988520]

約数ペア:

[(1, 996988520), (2, 498494260), (4, 249247130), (5, 199397704), (8, 124623565), (10, 99698852), (11, 90635320), (19, 52473080), (20, 49849426), (22, 45317660), (31, 32160920), (38, 26236540), (40, 24924713), (44, 22658830), (55, 18127064), (62, 16080460), (76, 13118270), (88, 11329415), (95, 10494616), (110, 9063532), (124, 8040230), (152, 6559135), (155, 6432184), (190, 5247308), (209, 4770280), (220, 4531766), (248, 4020115), (310, 3216092), (341, 2923720), (380, 2623654), (418, 2385140), (440, 2265883), (589, 1692680), (620, 1608046), (682, 1461860), (760, 1311827), (836, 1192570), (1045, 954056), (1178, 846340), (1240, 804023), (1364, 730930), (1672, 596285), (1705, 584744), (2090, 477028), (2356, 423170), (2728, 365465), (2945, 338536), (3410, 292372), (3847, 259160), (4180, 238514), (4712, 211585), (5890, 169268), (6479, 153880), (6820, 146186), (7694, 129580), (8360, 119257), (11780, 84634), (12958, 76940), (13640, 73093), (15388, 64790), (19235, 51832), (23560, 42317), (25916, 38470), (30776, 32395)]