21146381520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1999}}^1\times {\mathrm{4007}}^1$

素因数の和:6033

約数の個数: 160

約数和(自身を含む): 71566848000

約数和(自身を除く): 50420466480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 1999, 2640, 3998, 4007, 5997, 7996, 8014, 9995, 11994, 12021, 15992, 16028, 19990, 20035, 21989, 23988, 24042, 29985, 31984, 32056, 39980, 40070, 43978, 44077, 47976, 48084, 59970, 60105, 64112, 65967, 79960, 80140, 87956, 88154, 95952, 96168, 109945, 119940, 120210, 131934, 132231, 159920, 160280, 175912, 176308, 192336, 219890, 220385, 239880, 240420, 263868, 264462, 320560, 329835, 351824, 352616, 439780, 440770, 479760, 480840, 527736, 528924, 659670, 661155, 705232, 879560, 881540, 961680, 1055472, 1057848, 1319340, 1322310, 1759120, 1763080, 2115696, 2638680, 2644620, 3526160, 5277360, 5289240, 8009993, 10578480, 16019986, 24029979, 32039972, 40049965, 48059958, 64079944, 80099930, 88109923, 96119916, 120149895, 128159888, 160199860, 176219846, 192239832, 240299790, 264329769, 320399720, 352439692, 384479664, 440549615, 480599580, 528659538, 640799440, 704879384, 881099230, 961199160, 1057319076, 1321648845, 1409758768, 1762198460, 1922398320, 2114638152, 2643297690, 3524396920, 4229276304, 5286595380, 7048793840, 10573190760, 21146381520]

約数ペア:

[(1, 21146381520), (2, 10573190760), (3, 7048793840), (4, 5286595380), (5, 4229276304), (6, 3524396920), (8, 2643297690), (10, 2114638152), (11, 1922398320), (12, 1762198460), (15, 1409758768), (16, 1321648845), (20, 1057319076), (22, 961199160), (24, 881099230), (30, 704879384), (33, 640799440), (40, 528659538), (44, 480599580), (48, 440549615), (55, 384479664), (60, 352439692), (66, 320399720), (80, 264329769), (88, 240299790), (110, 192239832), (120, 176219846), (132, 160199860), (165, 128159888), (176, 120149895), (220, 96119916), (240, 88109923), (264, 80099930), (330, 64079944), (440, 48059958), (528, 40049965), (660, 32039972), (880, 24029979), (1320, 16019986), (1999, 10578480), (2640, 8009993), (3998, 5289240), (4007, 5277360), (5997, 3526160), (7996, 2644620), (8014, 2638680), (9995, 2115696), (11994, 1763080), (12021, 1759120), (15992, 1322310), (16028, 1319340), (19990, 1057848), (20035, 1055472), (21989, 961680), (23988, 881540), (24042, 879560), (29985, 705232), (31984, 661155), (32056, 659670), (39980, 528924), (40070, 527736), (43978, 480840), (44077, 479760), (47976, 440770), (48084, 439780), (59970, 352616), (60105, 351824), (64112, 329835), (65967, 320560), (79960, 264462), (80140, 263868), (87956, 240420), (88154, 239880), (95952, 220385), (96168, 219890), (109945, 192336), (119940, 176308), (120210, 175912), (131934, 160280), (132231, 159920)]