16934920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 39657600

約数和(自身を除く): 22722680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 71, 89, 134, 142, 178, 268, 284, 335, 355, 356, 445, 536, 568, 670, 710, 712, 890, 1340, 1420, 1780, 2680, 2840, 3560, 4757, 5963, 6319, 9514, 11926, 12638, 19028, 23785, 23852, 25276, 29815, 31595, 38056, 47570, 47704, 50552, 59630, 63190, 95140, 119260, 126380, 190280, 238520, 252760, 423373, 846746, 1693492, 2116865, 3386984, 4233730, 8467460, 16934920]

約数ペア:

[(1, 16934920), (2, 8467460), (4, 4233730), (5, 3386984), (8, 2116865), (10, 1693492), (20, 846746), (40, 423373), (67, 252760), (71, 238520), (89, 190280), (134, 126380), (142, 119260), (178, 95140), (268, 63190), (284, 59630), (335, 50552), (355, 47704), (356, 47570), (445, 38056), (536, 31595), (568, 29815), (670, 25276), (710, 23852), (712, 23785), (890, 19028), (1340, 12638), (1420, 11926), (1780, 9514), (2680, 6319), (2840, 5963), (3560, 4757)]