21320500400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{45989}}^1$

素因数の和:46087

約数の個数: 120

約数和(自身を含む): 54803523600

約数和(自身を除く): 33483023200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 61, 76, 80, 95, 100, 122, 152, 190, 200, 244, 304, 305, 380, 400, 475, 488, 610, 760, 950, 976, 1159, 1220, 1520, 1525, 1900, 2318, 2440, 3050, 3800, 4636, 4880, 5795, 6100, 7600, 9272, 11590, 12200, 18544, 23180, 24400, 28975, 45989, 46360, 57950, 91978, 92720, 115900, 183956, 229945, 231800, 367912, 459890, 463600, 735824, 873791, 919780, 1149725, 1747582, 1839560, 2299450, 2805329, 3495164, 3679120, 4368955, 4598900, 5610658, 6990328, 8737910, 9197800, 11221316, 13980656, 14026645, 17475820, 18395600, 21844775, 22442632, 28053290, 34951640, 43689550, 44885264, 53301251, 56106580, 69903280, 70133225, 87379100, 106602502, 112213160, 140266450, 174758200, 213205004, 224426320, 266506255, 280532900, 349516400, 426410008, 533012510, 561065800, 852820016, 1066025020, 1122131600, 1332531275, 2132050040, 2665062550, 4264100080, 5330125100, 10660250200, 21320500400]

約数ペア:

[(1, 21320500400), (2, 10660250200), (4, 5330125100), (5, 4264100080), (8, 2665062550), (10, 2132050040), (16, 1332531275), (19, 1122131600), (20, 1066025020), (25, 852820016), (38, 561065800), (40, 533012510), (50, 426410008), (61, 349516400), (76, 280532900), (80, 266506255), (95, 224426320), (100, 213205004), (122, 174758200), (152, 140266450), (190, 112213160), (200, 106602502), (244, 87379100), (304, 70133225), (305, 69903280), (380, 56106580), (400, 53301251), (475, 44885264), (488, 43689550), (610, 34951640), (760, 28053290), (950, 22442632), (976, 21844775), (1159, 18395600), (1220, 17475820), (1520, 14026645), (1525, 13980656), (1900, 11221316), (2318, 9197800), (2440, 8737910), (3050, 6990328), (3800, 5610658), (4636, 4598900), (4880, 4368955), (5795, 3679120), (6100, 3495164), (7600, 2805329), (9272, 2299450), (11590, 1839560), (12200, 1747582), (18544, 1149725), (23180, 919780), (24400, 873791), (28975, 735824), (45989, 463600), (46360, 459890), (57950, 367912), (91978, 231800), (92720, 229945), (115900, 183956)]