21007908880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{13597}}^1$

素因数の和:13737

約数の個数: 160

約数和(自身を含む): 58273413120

約数和(自身を除く): 37265504240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 89, 112, 124, 140, 155, 178, 217, 248, 280, 310, 356, 434, 445, 496, 560, 620, 623, 712, 868, 890, 1085, 1240, 1246, 1424, 1736, 1780, 2170, 2480, 2492, 2759, 3115, 3472, 3560, 4340, 4984, 5518, 6230, 7120, 8680, 9968, 11036, 12460, 13597, 13795, 17360, 19313, 22072, 24920, 27194, 27590, 38626, 44144, 49840, 54388, 55180, 67985, 77252, 95179, 96565, 108776, 110360, 135970, 154504, 190358, 193130, 217552, 220720, 271940, 309008, 380716, 386260, 421507, 475895, 543880, 761432, 772520, 843014, 951790, 1087760, 1210133, 1522864, 1545040, 1686028, 1903580, 2107535, 2420266, 2950549, 3372056, 3807160, 4215070, 4840532, 5901098, 6050665, 6744112, 7614320, 8430140, 8470931, 9681064, 11802196, 12101330, 14752745, 16860280, 16941862, 19362128, 23604392, 24202660, 29505490, 33720560, 33883724, 37514123, 42354655, 47208784, 48405320, 59010980, 67767448, 75028246, 84709310, 96810640, 118021960, 135534896, 150056492, 169418620, 187570615, 236043920, 262598861, 300112984, 338837240, 375141230, 525197722, 600225968, 677674480, 750282460, 1050395444, 1312994305, 1500564920, 2100790888, 2625988610, 3001129840, 4201581776, 5251977220, 10503954440, 21007908880]

約数ペア:

[(1, 21007908880), (2, 10503954440), (4, 5251977220), (5, 4201581776), (7, 3001129840), (8, 2625988610), (10, 2100790888), (14, 1500564920), (16, 1312994305), (20, 1050395444), (28, 750282460), (31, 677674480), (35, 600225968), (40, 525197722), (56, 375141230), (62, 338837240), (70, 300112984), (80, 262598861), (89, 236043920), (112, 187570615), (124, 169418620), (140, 150056492), (155, 135534896), (178, 118021960), (217, 96810640), (248, 84709310), (280, 75028246), (310, 67767448), (356, 59010980), (434, 48405320), (445, 47208784), (496, 42354655), (560, 37514123), (620, 33883724), (623, 33720560), (712, 29505490), (868, 24202660), (890, 23604392), (1085, 19362128), (1240, 16941862), (1246, 16860280), (1424, 14752745), (1736, 12101330), (1780, 11802196), (2170, 9681064), (2480, 8470931), (2492, 8430140), (2759, 7614320), (3115, 6744112), (3472, 6050665), (3560, 5901098), (4340, 4840532), (4984, 4215070), (5518, 3807160), (6230, 3372056), (7120, 2950549), (8680, 2420266), (9968, 2107535), (11036, 1903580), (12460, 1686028), (13597, 1545040), (13795, 1522864), (17360, 1210133), (19313, 1087760), (22072, 951790), (24920, 843014), (27194, 772520), (27590, 761432), (38626, 543880), (44144, 475895), (49840, 421507), (54388, 386260), (55180, 380716), (67985, 309008), (77252, 271940), (95179, 220720), (96565, 217552), (108776, 193130), (110360, 190358), (135970, 154504)]