20524860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:408

約数の個数: 96

約数和(自身を含む): 64512000

約数和(自身を除く): 43987140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 191, 199, 270, 382, 398, 540, 573, 597, 764, 796, 955, 995, 1146, 1194, 1719, 1791, 1910, 1990, 2292, 2388, 2865, 2985, 3438, 3582, 3820, 3980, 5157, 5373, 5730, 5970, 6876, 7164, 8595, 8955, 10314, 10746, 11460, 11940, 17190, 17910, 20628, 21492, 25785, 26865, 34380, 35820, 38009, 51570, 53730, 76018, 103140, 107460, 114027, 152036, 190045, 228054, 342081, 380090, 456108, 570135, 684162, 760180, 1026243, 1140270, 1368324, 1710405, 2052486, 2280540, 3420810, 4104972, 5131215, 6841620, 10262430, 20524860]

約数ペア:

[(1, 20524860), (2, 10262430), (3, 6841620), (4, 5131215), (5, 4104972), (6, 3420810), (9, 2280540), (10, 2052486), (12, 1710405), (15, 1368324), (18, 1140270), (20, 1026243), (27, 760180), (30, 684162), (36, 570135), (45, 456108), (54, 380090), (60, 342081), (90, 228054), (108, 190045), (135, 152036), (180, 114027), (191, 107460), (199, 103140), (270, 76018), (382, 53730), (398, 51570), (540, 38009), (573, 35820), (597, 34380), (764, 26865), (796, 25785), (955, 21492), (995, 20628), (1146, 17910), (1194, 17190), (1719, 11940), (1791, 11460), (1910, 10746), (1990, 10314), (2292, 8955), (2388, 8595), (2865, 7164), (2985, 6876), (3438, 5970), (3582, 5730), (3820, 5373), (3980, 5157)]