1282616320

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8081}}^1$

素因数の和:8137

約数の個数: 88

約数和(自身を含む): 3176419968

約数和(自身を除く): 1893803648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 5120, 7936, 8081, 9920, 15872, 16162, 19840, 31744, 32324, 39680, 40405, 64648, 79360, 80810, 129296, 158720, 161620, 250511, 258592, 323240, 501022, 517184, 646480, 1002044, 1034368, 1252555, 1292960, 2004088, 2068736, 2505110, 2585920, 4008176, 4137472, 5010220, 5171840, 8016352, 8274944, 10020440, 10343680, 16032704, 20040880, 20687360, 32065408, 40081760, 41374720, 64130816, 80163520, 128261632, 160327040, 256523264, 320654080, 641308160, 1282616320]

約数ペア:

[(1, 1282616320), (2, 641308160), (4, 320654080), (5, 256523264), (8, 160327040), (10, 128261632), (16, 80163520), (20, 64130816), (31, 41374720), (32, 40081760), (40, 32065408), (62, 20687360), (64, 20040880), (80, 16032704), (124, 10343680), (128, 10020440), (155, 8274944), (160, 8016352), (248, 5171840), (256, 5010220), (310, 4137472), (320, 4008176), (496, 2585920), (512, 2505110), (620, 2068736), (640, 2004088), (992, 1292960), (1024, 1252555), (1240, 1034368), (1280, 1002044), (1984, 646480), (2480, 517184), (2560, 501022), (3968, 323240), (4960, 258592), (5120, 250511), (7936, 161620), (8081, 158720), (9920, 129296), (15872, 80810), (16162, 79360), (19840, 64648), (31744, 40405), (32324, 39680)]