18890337320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{4919}}^1$

素因数の和:5143

約数の個数: 128

約数和(自身を含む): 46476288000

約数和(自身を除く): 27585950680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 163, 190, 248, 310, 326, 380, 589, 620, 652, 760, 815, 1178, 1240, 1304, 1630, 2356, 2945, 3097, 3260, 4712, 4919, 5053, 5890, 6194, 6520, 9838, 10106, 11780, 12388, 15485, 19676, 20212, 23560, 24595, 24776, 25265, 30970, 39352, 40424, 49190, 50530, 61940, 93461, 96007, 98380, 101060, 123880, 152489, 186922, 192014, 196760, 202120, 304978, 373844, 384028, 467305, 480035, 609956, 747688, 762445, 768056, 801797, 934610, 960070, 1219912, 1524890, 1603594, 1869220, 1920140, 2897291, 3049780, 3207188, 3738440, 3840280, 4008985, 5794582, 6099560, 6414376, 8017970, 11589164, 14486455, 15234143, 16035940, 23178328, 24855707, 28972910, 30468286, 32071880, 49711414, 57945820, 60936572, 76170715, 99422828, 115891640, 121873144, 124278535, 152341430, 198845656, 248557070, 304682860, 472258433, 497114140, 609365720, 944516866, 994228280, 1889033732, 2361292165, 3778067464, 4722584330, 9445168660, 18890337320]

約数ペア:

[(1, 18890337320), (2, 9445168660), (4, 4722584330), (5, 3778067464), (8, 2361292165), (10, 1889033732), (19, 994228280), (20, 944516866), (31, 609365720), (38, 497114140), (40, 472258433), (62, 304682860), (76, 248557070), (95, 198845656), (124, 152341430), (152, 124278535), (155, 121873144), (163, 115891640), (190, 99422828), (248, 76170715), (310, 60936572), (326, 57945820), (380, 49711414), (589, 32071880), (620, 30468286), (652, 28972910), (760, 24855707), (815, 23178328), (1178, 16035940), (1240, 15234143), (1304, 14486455), (1630, 11589164), (2356, 8017970), (2945, 6414376), (3097, 6099560), (3260, 5794582), (4712, 4008985), (4919, 3840280), (5053, 3738440), (5890, 3207188), (6194, 3049780), (6520, 2897291), (9838, 1920140), (10106, 1869220), (11780, 1603594), (12388, 1524890), (15485, 1219912), (19676, 960070), (20212, 934610), (23560, 801797), (24595, 768056), (24776, 762445), (25265, 747688), (30970, 609956), (39352, 480035), (40424, 467305), (49190, 384028), (50530, 373844), (61940, 304978), (93461, 202120), (96007, 196760), (98380, 192014), (101060, 186922), (123880, 152489)]