47712420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1993}}^1$

素因数の和:2034

約数の個数: 144

約数和(自身を含む): 174195840

約数和(自身を除く): 126483420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 855, 1140, 1197, 1260, 1330, 1596, 1710, 1993, 1995, 2394, 2660, 3420, 3986, 3990, 4788, 5979, 5985, 7972, 7980, 9965, 11958, 11970, 13951, 17937, 19930, 23916, 23940, 27902, 29895, 35874, 37867, 39860, 41853, 55804, 59790, 69755, 71748, 75734, 83706, 89685, 113601, 119580, 125559, 139510, 151468, 167412, 179370, 189335, 209265, 227202, 251118, 265069, 279020, 340803, 358740, 378670, 418530, 454404, 502236, 530138, 568005, 627795, 681606, 757340, 795207, 837060, 1060276, 1136010, 1255590, 1325345, 1363212, 1590414, 1704015, 2272020, 2385621, 2511180, 2650690, 3180828, 3408030, 3976035, 4771242, 5301380, 6816060, 7952070, 9542484, 11928105, 15904140, 23856210, 47712420]

約数ペア:

[(1, 47712420), (2, 23856210), (3, 15904140), (4, 11928105), (5, 9542484), (6, 7952070), (7, 6816060), (9, 5301380), (10, 4771242), (12, 3976035), (14, 3408030), (15, 3180828), (18, 2650690), (19, 2511180), (20, 2385621), (21, 2272020), (28, 1704015), (30, 1590414), (35, 1363212), (36, 1325345), (38, 1255590), (42, 1136010), (45, 1060276), (57, 837060), (60, 795207), (63, 757340), (70, 681606), (76, 627795), (84, 568005), (90, 530138), (95, 502236), (105, 454404), (114, 418530), (126, 378670), (133, 358740), (140, 340803), (171, 279020), (180, 265069), (190, 251118), (210, 227202), (228, 209265), (252, 189335), (266, 179370), (285, 167412), (315, 151468), (342, 139510), (380, 125559), (399, 119580), (420, 113601), (532, 89685), (570, 83706), (630, 75734), (665, 71748), (684, 69755), (798, 59790), (855, 55804), (1140, 41853), (1197, 39860), (1260, 37867), (1330, 35874), (1596, 29895), (1710, 27902), (1993, 23940), (1995, 23916), (2394, 19930), (2660, 17937), (3420, 13951), (3986, 11970), (3990, 11958), (4788, 9965), (5979, 7980), (5985, 7972)]