51631740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:552

約数の個数: 144

約数和(自身を含む): 170526720

約数和(自身を除く): 118894980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 31, 36, 38, 45, 57, 60, 62, 76, 90, 93, 95, 114, 124, 155, 171, 180, 186, 190, 228, 279, 285, 310, 342, 372, 380, 465, 487, 558, 570, 589, 620, 684, 855, 930, 974, 1116, 1140, 1178, 1395, 1461, 1710, 1767, 1860, 1948, 2356, 2435, 2790, 2922, 2945, 3420, 3534, 4383, 4870, 5301, 5580, 5844, 5890, 7068, 7305, 8766, 8835, 9253, 9740, 10602, 11780, 14610, 15097, 17532, 17670, 18506, 21204, 21915, 26505, 27759, 29220, 30194, 35340, 37012, 43830, 45291, 46265, 53010, 55518, 60388, 75485, 83277, 87660, 90582, 92530, 106020, 111036, 135873, 138795, 150970, 166554, 181164, 185060, 226455, 271746, 277590, 286843, 301940, 333108, 416385, 452910, 543492, 555180, 573686, 679365, 832770, 860529, 905820, 1147372, 1358730, 1434215, 1665540, 1721058, 2581587, 2717460, 2868430, 3442116, 4302645, 5163174, 5736860, 8605290, 10326348, 12907935, 17210580, 25815870, 51631740]

約数ペア:

[(1, 51631740), (2, 25815870), (3, 17210580), (4, 12907935), (5, 10326348), (6, 8605290), (9, 5736860), (10, 5163174), (12, 4302645), (15, 3442116), (18, 2868430), (19, 2717460), (20, 2581587), (30, 1721058), (31, 1665540), (36, 1434215), (38, 1358730), (45, 1147372), (57, 905820), (60, 860529), (62, 832770), (76, 679365), (90, 573686), (93, 555180), (95, 543492), (114, 452910), (124, 416385), (155, 333108), (171, 301940), (180, 286843), (186, 277590), (190, 271746), (228, 226455), (279, 185060), (285, 181164), (310, 166554), (342, 150970), (372, 138795), (380, 135873), (465, 111036), (487, 106020), (558, 92530), (570, 90582), (589, 87660), (620, 83277), (684, 75485), (855, 60388), (930, 55518), (974, 53010), (1116, 46265), (1140, 45291), (1178, 43830), (1395, 37012), (1461, 35340), (1710, 30194), (1767, 29220), (1860, 27759), (1948, 26505), (2356, 21915), (2435, 21204), (2790, 18506), (2922, 17670), (2945, 17532), (3420, 15097), (3534, 14610), (4383, 11780), (4870, 10602), (5301, 9740), (5580, 9253), (5844, 8835), (5890, 8766), (7068, 7305)]