668630720

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{26449}}^1$

素因数の和:26545

約数の個数: 56

約数和(自身を含む): 1612392000

約数和(自身を除く): 943761280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 6320, 12640, 25280, 26449, 52898, 105796, 132245, 211592, 264490, 423184, 528980, 846368, 1057960, 1692736, 2089471, 2115920, 4178942, 4231840, 8357884, 8463680, 10447355, 16715768, 20894710, 33431536, 41789420, 66863072, 83578840, 133726144, 167157680, 334315360, 668630720]

約数ペア:

[(1, 668630720), (2, 334315360), (4, 167157680), (5, 133726144), (8, 83578840), (10, 66863072), (16, 41789420), (20, 33431536), (32, 20894710), (40, 16715768), (64, 10447355), (79, 8463680), (80, 8357884), (158, 4231840), (160, 4178942), (316, 2115920), (320, 2089471), (395, 1692736), (632, 1057960), (790, 846368), (1264, 528980), (1580, 423184), (2528, 264490), (3160, 211592), (5056, 132245), (6320, 105796), (12640, 52898), (25280, 26449)]