19797160

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 26470040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 83, 89, 134, 166, 178, 268, 332, 335, 356, 415, 445, 536, 664, 670, 712, 830, 890, 1340, 1660, 1780, 2680, 3320, 3560, 5561, 5963, 7387, 11122, 11926, 14774, 22244, 23852, 27805, 29548, 29815, 36935, 44488, 47704, 55610, 59096, 59630, 73870, 111220, 119260, 147740, 222440, 238520, 295480, 494929, 989858, 1979716, 2474645, 3959432, 4949290, 9898580, 19797160]

約数ペア:

[(1, 19797160), (2, 9898580), (4, 4949290), (5, 3959432), (8, 2474645), (10, 1979716), (20, 989858), (40, 494929), (67, 295480), (83, 238520), (89, 222440), (134, 147740), (166, 119260), (178, 111220), (268, 73870), (332, 59630), (335, 59096), (356, 55610), (415, 47704), (445, 44488), (536, 36935), (664, 29815), (670, 29548), (712, 27805), (830, 23852), (890, 22244), (1340, 14774), (1660, 11926), (1780, 11122), (2680, 7387), (3320, 5963), (3560, 5561)]