312190778840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{2138879}}^1$

素因数の和:2139020

約数の個数: 64

約数和(自身を含む): 727646976000

約数和(自身を除く): 415456197160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 89, 164, 178, 205, 328, 356, 410, 445, 712, 820, 890, 1640, 1780, 3560, 3649, 7298, 14596, 18245, 29192, 36490, 72980, 145960, 2138879, 4277758, 8555516, 10694395, 17111032, 21388790, 42777580, 85555160, 87694039, 175388078, 190360231, 350776156, 380720462, 438470195, 701552312, 761440924, 876940390, 951801155, 1522881848, 1753880780, 1903602310, 3507761560, 3807204620, 7614409240, 7804769471, 15609538942, 31219077884, 39023847355, 62438155768, 78047694710, 156095389420, 312190778840]

約数ペア:

[(1, 312190778840), (2, 156095389420), (4, 78047694710), (5, 62438155768), (8, 39023847355), (10, 31219077884), (20, 15609538942), (40, 7804769471), (41, 7614409240), (82, 3807204620), (89, 3507761560), (164, 1903602310), (178, 1753880780), (205, 1522881848), (328, 951801155), (356, 876940390), (410, 761440924), (445, 701552312), (712, 438470195), (820, 380720462), (890, 350776156), (1640, 190360231), (1780, 175388078), (3560, 87694039), (3649, 85555160), (7298, 42777580), (14596, 21388790), (18245, 17111032), (29192, 10694395), (36490, 8555516), (72980, 4277758), (145960, 2138879)]