21371569360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{263}}^1\times {\mathrm{277}}^1$

素因数の和:765

約数の個数: 160

約数和(自身を含む): 52965538560

約数和(自身を除く): 31593969200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 193, 263, 277, 304, 380, 386, 526, 554, 760, 772, 965, 1052, 1108, 1315, 1385, 1520, 1544, 1930, 2104, 2216, 2630, 2770, 3088, 3667, 3860, 4208, 4432, 4997, 5260, 5263, 5540, 7334, 7720, 9994, 10520, 10526, 11080, 14668, 15440, 18335, 19988, 21040, 21052, 22160, 24985, 26315, 29336, 36670, 39976, 42104, 49970, 50759, 52630, 53461, 58672, 72851, 73340, 79952, 84208, 99940, 101518, 105260, 106922, 145702, 146680, 199880, 203036, 210520, 213844, 253795, 267305, 291404, 293360, 364255, 399760, 406072, 421040, 427688, 507590, 534610, 582808, 728510, 812144, 855376, 964421, 1015180, 1015759, 1069220, 1165616, 1384169, 1457020, 1928842, 2030360, 2031518, 2138440, 2768338, 2914040, 3857684, 4060720, 4063036, 4276880, 4822105, 5078795, 5536676, 5828080, 6920845, 7715368, 8126072, 9644210, 10157590, 11073352, 13841690, 14060243, 15430736, 16252144, 19288420, 20315180, 22146704, 27683380, 28120486, 38576840, 40630360, 55366760, 56240972, 70301215, 77153680, 81260720, 110733520, 112481944, 140602430, 224963888, 267144617, 281204860, 534289234, 562409720, 1068578468, 1124819440, 1335723085, 2137156936, 2671446170, 4274313872, 5342892340, 10685784680, 21371569360]

約数ペア:

[(1, 21371569360), (2, 10685784680), (4, 5342892340), (5, 4274313872), (8, 2671446170), (10, 2137156936), (16, 1335723085), (19, 1124819440), (20, 1068578468), (38, 562409720), (40, 534289234), (76, 281204860), (80, 267144617), (95, 224963888), (152, 140602430), (190, 112481944), (193, 110733520), (263, 81260720), (277, 77153680), (304, 70301215), (380, 56240972), (386, 55366760), (526, 40630360), (554, 38576840), (760, 28120486), (772, 27683380), (965, 22146704), (1052, 20315180), (1108, 19288420), (1315, 16252144), (1385, 15430736), (1520, 14060243), (1544, 13841690), (1930, 11073352), (2104, 10157590), (2216, 9644210), (2630, 8126072), (2770, 7715368), (3088, 6920845), (3667, 5828080), (3860, 5536676), (4208, 5078795), (4432, 4822105), (4997, 4276880), (5260, 4063036), (5263, 4060720), (5540, 3857684), (7334, 2914040), (7720, 2768338), (9994, 2138440), (10520, 2031518), (10526, 2030360), (11080, 1928842), (14668, 1457020), (15440, 1384169), (18335, 1165616), (19988, 1069220), (21040, 1015759), (21052, 1015180), (22160, 964421), (24985, 855376), (26315, 812144), (29336, 728510), (36670, 582808), (39976, 534610), (42104, 507590), (49970, 427688), (50759, 421040), (52630, 406072), (53461, 399760), (58672, 364255), (72851, 293360), (73340, 291404), (79952, 267305), (84208, 253795), (99940, 213844), (101518, 210520), (105260, 203036), (106922, 199880), (145702, 146680)]