1390208030

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:561

約数の個数: 64

約数和(自身を含む): 2626560000

約数和(自身を除く): 1236351970

約数列:

[1, 2, 5, 10, 37, 74, 79, 158, 185, 199, 239, 370, 395, 398, 478, 790, 995, 1195, 1990, 2390, 2923, 5846, 7363, 8843, 14615, 14726, 15721, 17686, 18881, 29230, 31442, 36815, 37762, 44215, 47561, 73630, 78605, 88430, 94405, 95122, 157210, 188810, 237805, 475610, 581677, 698597, 1163354, 1397194, 1759757, 2908385, 3492985, 3519514, 3757319, 5816770, 6985970, 7514638, 8798785, 17597570, 18786595, 37573190, 139020803, 278041606, 695104015, 1390208030]

約数ペア:

[(1, 1390208030), (2, 695104015), (5, 278041606), (10, 139020803), (37, 37573190), (74, 18786595), (79, 17597570), (158, 8798785), (185, 7514638), (199, 6985970), (239, 5816770), (370, 3757319), (395, 3519514), (398, 3492985), (478, 2908385), (790, 1759757), (995, 1397194), (1195, 1163354), (1990, 698597), (2390, 581677), (2923, 475610), (5846, 237805), (7363, 188810), (8843, 157210), (14615, 95122), (14726, 94405), (15721, 88430), (17686, 78605), (18881, 73630), (29230, 47561), (31442, 44215), (36815, 37762)]