20461860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:258

約数の個数: 144

約数和(自身を含む): 67791360

約数和(自身を除く): 47329500

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, 193, 228, 279, 285, 310, 342, 372, 380, 386, 465, 558, 570, 579, 589, 620, 684, 772, 855, 930, 965, 1116, 1140, 1158, 1178, 1395, 1710, 1737, 1767, 1860, 1930, 2316, 2356, 2790, 2895, 2945, 3420, 3474, 3534, 3667, 3860, 5301, 5580, 5790, 5890, 5983, 6948, 7068, 7334, 8685, 8835, 10602, 11001, 11580, 11780, 11966, 14668, 17370, 17670, 17949, 18335, 21204, 22002, 23932, 26505, 29915, 33003, 34740, 35340, 35898, 36670, 44004, 53010, 53847, 55005, 59830, 66006, 71796, 73340, 89745, 106020, 107694, 110010, 113677, 119660, 132012, 165015, 179490, 215388, 220020, 227354, 269235, 330030, 341031, 358980, 454708, 538470, 568385, 660060, 682062, 1023093, 1076940, 1136770, 1364124, 1705155, 2046186, 2273540, 3410310, 4092372, 5115465, 6820620, 10230930, 20461860]

約数ペア:

[(1, 20461860), (2, 10230930), (3, 6820620), (4, 5115465), (5, 4092372), (6, 3410310), (9, 2273540), (10, 2046186), (12, 1705155), (15, 1364124), (18, 1136770), (19, 1076940), (20, 1023093), (30, 682062), (31, 660060), (36, 568385), (38, 538470), (45, 454708), (57, 358980), (60, 341031), (62, 330030), (76, 269235), (90, 227354), (93, 220020), (95, 215388), (114, 179490), (124, 165015), (155, 132012), (171, 119660), (180, 113677), (186, 110010), (190, 107694), (193, 106020), (228, 89745), (279, 73340), (285, 71796), (310, 66006), (342, 59830), (372, 55005), (380, 53847), (386, 53010), (465, 44004), (558, 36670), (570, 35898), (579, 35340), (589, 34740), (620, 33003), (684, 29915), (772, 26505), (855, 23932), (930, 22002), (965, 21204), (1116, 18335), (1140, 17949), (1158, 17670), (1178, 17370), (1395, 14668), (1710, 11966), (1737, 11780), (1767, 11580), (1860, 11001), (1930, 10602), (2316, 8835), (2356, 8685), (2790, 7334), (2895, 7068), (2945, 6948), (3420, 5983), (3474, 5890), (3534, 5790), (3667, 5580), (3860, 5301)]