21875760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1321}}^1$

素因数の和:1363

約数の個数: 120

約数和(自身を含む): 76718304

約数和(自身を除く): 54842544

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1321, 1380, 1656, 1840, 2070, 2642, 2760, 3312, 3963, 4140, 5284, 5520, 6605, 7926, 8280, 10568, 11889, 13210, 15852, 16560, 19815, 21136, 23778, 26420, 30383, 31704, 39630, 47556, 52840, 59445, 60766, 63408, 79260, 91149, 95112, 105680, 118890, 121532, 151915, 158520, 182298, 190224, 237780, 243064, 273447, 303830, 317040, 364596, 455745, 475560, 486128, 546894, 607660, 729192, 911490, 951120, 1093788, 1215320, 1367235, 1458384, 1822980, 2187576, 2430640, 2734470, 3645960, 4375152, 5468940, 7291920, 10937880, 21875760]

約数ペア:

[(1, 21875760), (2, 10937880), (3, 7291920), (4, 5468940), (5, 4375152), (6, 3645960), (8, 2734470), (9, 2430640), (10, 2187576), (12, 1822980), (15, 1458384), (16, 1367235), (18, 1215320), (20, 1093788), (23, 951120), (24, 911490), (30, 729192), (36, 607660), (40, 546894), (45, 486128), (46, 475560), (48, 455745), (60, 364596), (69, 317040), (72, 303830), (80, 273447), (90, 243064), (92, 237780), (115, 190224), (120, 182298), (138, 158520), (144, 151915), (180, 121532), (184, 118890), (207, 105680), (230, 95112), (240, 91149), (276, 79260), (345, 63408), (360, 60766), (368, 59445), (414, 52840), (460, 47556), (552, 39630), (690, 31704), (720, 30383), (828, 26420), (920, 23778), (1035, 21136), (1104, 19815), (1321, 16560), (1380, 15852), (1656, 13210), (1840, 11889), (2070, 10568), (2642, 8280), (2760, 7926), (3312, 6605), (3963, 5520), (4140, 5284)]