19709135360

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{248351}}^1$

素因数の和:248405

約数の個数: 80

約数和(自身を含む): 48780306432

約数和(自身を除く): 29071171072

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, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 7936, 9920, 15872, 19840, 39680, 79360, 248351, 496702, 993404, 1241755, 1986808, 2483510, 3973616, 4967020, 7698881, 7947232, 9934040, 15397762, 15894464, 19868080, 30795524, 31788928, 38494405, 39736160, 61591048, 63577856, 76988810, 79472320, 123182096, 127155712, 153977620, 158944640, 246364192, 307955240, 317889280, 492728384, 615910480, 635778560, 985456768, 1231820960, 1970913536, 2463641920, 3941827072, 4927283840, 9854567680, 19709135360]

約数ペア:

[(1, 19709135360), (2, 9854567680), (4, 4927283840), (5, 3941827072), (8, 2463641920), (10, 1970913536), (16, 1231820960), (20, 985456768), (31, 635778560), (32, 615910480), (40, 492728384), (62, 317889280), (64, 307955240), (80, 246364192), (124, 158944640), (128, 153977620), (155, 127155712), (160, 123182096), (248, 79472320), (256, 76988810), (310, 63577856), (320, 61591048), (496, 39736160), (512, 38494405), (620, 31788928), (640, 30795524), (992, 19868080), (1240, 15894464), (1280, 15397762), (1984, 9934040), (2480, 7947232), (2560, 7698881), (3968, 4967020), (4960, 3973616), (7936, 2483510), (9920, 1986808), (15872, 1241755), (19840, 993404), (39680, 496702), (79360, 248351)]