81488340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23827}}^1$

素因数の和:23861

約数の個数: 72

約数和(自身を含む): 260201760

約数和(自身を除く): 178713420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 23827, 47654, 71481, 95308, 119135, 142962, 214443, 238270, 285924, 357405, 428886, 452713, 476540, 714810, 857772, 905426, 1072215, 1358139, 1429620, 1810852, 2144430, 2263565, 2716278, 4074417, 4288860, 4527130, 5432556, 6790695, 8148834, 9054260, 13581390, 16297668, 20372085, 27162780, 40744170, 81488340]

約数ペア:

[(1, 81488340), (2, 40744170), (3, 27162780), (4, 20372085), (5, 16297668), (6, 13581390), (9, 9054260), (10, 8148834), (12, 6790695), (15, 5432556), (18, 4527130), (19, 4288860), (20, 4074417), (30, 2716278), (36, 2263565), (38, 2144430), (45, 1810852), (57, 1429620), (60, 1358139), (76, 1072215), (90, 905426), (95, 857772), (114, 714810), (171, 476540), (180, 452713), (190, 428886), (228, 357405), (285, 285924), (342, 238270), (380, 214443), (570, 142962), (684, 119135), (855, 95308), (1140, 71481), (1710, 47654), (3420, 23827)]