1664448640

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{136879}}^1$

素因数の和:136917

約数の個数: 64

約数和(自身を含む): 4188528000

約数和(自身を除く): 2524079360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 12160, 136879, 273758, 547516, 684395, 1095032, 1368790, 2190064, 2600701, 2737580, 4380128, 5201402, 5475160, 8760256, 10402804, 10950320, 13003505, 17520512, 20805608, 21900640, 26007010, 41611216, 43801280, 52014020, 83222432, 87602560, 104028040, 166444864, 208056080, 332889728, 416112160, 832224320, 1664448640]

約数ペア:

[(1, 1664448640), (2, 832224320), (4, 416112160), (5, 332889728), (8, 208056080), (10, 166444864), (16, 104028040), (19, 87602560), (20, 83222432), (32, 52014020), (38, 43801280), (40, 41611216), (64, 26007010), (76, 21900640), (80, 20805608), (95, 17520512), (128, 13003505), (152, 10950320), (160, 10402804), (190, 8760256), (304, 5475160), (320, 5201402), (380, 4380128), (608, 2737580), (640, 2600701), (760, 2190064), (1216, 1368790), (1520, 1095032), (2432, 684395), (3040, 547516), (6080, 273758), (12160, 136879)]