19992060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:488

約数の個数: 144

約数和(自身を含む): 69189120

約数和(自身を除く): 49197060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 23, 30, 33, 36, 44, 45, 46, 55, 60, 66, 69, 90, 92, 99, 110, 115, 132, 138, 165, 180, 198, 207, 220, 230, 253, 276, 330, 345, 396, 414, 439, 460, 495, 506, 660, 690, 759, 828, 878, 990, 1012, 1035, 1265, 1317, 1380, 1518, 1756, 1980, 2070, 2195, 2277, 2530, 2634, 3036, 3795, 3951, 4140, 4390, 4554, 4829, 5060, 5268, 6585, 7590, 7902, 8780, 9108, 9658, 10097, 11385, 13170, 14487, 15180, 15804, 19316, 19755, 20194, 22770, 24145, 26340, 28974, 30291, 39510, 40388, 43461, 45540, 48290, 50485, 57948, 60582, 72435, 79020, 86922, 90873, 96580, 100970, 111067, 121164, 144870, 151455, 173844, 181746, 201940, 217305, 222134, 289740, 302910, 333201, 363492, 434610, 444268, 454365, 555335, 605820, 666402, 869220, 908730, 999603, 1110670, 1332804, 1666005, 1817460, 1999206, 2221340, 3332010, 3998412, 4998015, 6664020, 9996030, 19992060]

約数ペア:

[(1, 19992060), (2, 9996030), (3, 6664020), (4, 4998015), (5, 3998412), (6, 3332010), (9, 2221340), (10, 1999206), (11, 1817460), (12, 1666005), (15, 1332804), (18, 1110670), (20, 999603), (22, 908730), (23, 869220), (30, 666402), (33, 605820), (36, 555335), (44, 454365), (45, 444268), (46, 434610), (55, 363492), (60, 333201), (66, 302910), (69, 289740), (90, 222134), (92, 217305), (99, 201940), (110, 181746), (115, 173844), (132, 151455), (138, 144870), (165, 121164), (180, 111067), (198, 100970), (207, 96580), (220, 90873), (230, 86922), (253, 79020), (276, 72435), (330, 60582), (345, 57948), (396, 50485), (414, 48290), (439, 45540), (460, 43461), (495, 40388), (506, 39510), (660, 30291), (690, 28974), (759, 26340), (828, 24145), (878, 22770), (990, 20194), (1012, 19755), (1035, 19316), (1265, 15804), (1317, 15180), (1380, 14487), (1518, 13170), (1756, 11385), (1980, 10097), (2070, 9658), (2195, 9108), (2277, 8780), (2530, 7902), (2634, 7590), (3036, 6585), (3795, 5268), (3951, 5060), (4140, 4829), (4390, 4554)]