16854520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:428

約数の個数: 64

約数和(自身を含む): 40636800

約数和(自身を除く): 23782280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 67, 76, 95, 134, 152, 190, 268, 331, 335, 380, 536, 662, 670, 760, 1273, 1324, 1340, 1655, 2546, 2648, 2680, 3310, 5092, 6289, 6365, 6620, 10184, 12578, 12730, 13240, 22177, 25156, 25460, 31445, 44354, 50312, 50920, 62890, 88708, 110885, 125780, 177416, 221770, 251560, 421363, 443540, 842726, 887080, 1685452, 2106815, 3370904, 4213630, 8427260, 16854520]

約数ペア:

[(1, 16854520), (2, 8427260), (4, 4213630), (5, 3370904), (8, 2106815), (10, 1685452), (19, 887080), (20, 842726), (38, 443540), (40, 421363), (67, 251560), (76, 221770), (95, 177416), (134, 125780), (152, 110885), (190, 88708), (268, 62890), (331, 50920), (335, 50312), (380, 44354), (536, 31445), (662, 25460), (670, 25156), (760, 22177), (1273, 13240), (1324, 12730), (1340, 12578), (1655, 10184), (2546, 6620), (2648, 6365), (2680, 6289), (3310, 5092)]