20713392840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{997}}^1\times {\mathrm{24733}}^1$

素因数の和:25751

約数の個数: 128

約数和(自身を含む): 71091452160

約数和(自身を除く): 50378059320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 997, 1994, 2991, 3988, 4985, 5982, 6979, 7976, 9970, 11964, 13958, 14955, 19940, 20937, 23928, 24733, 27916, 29910, 34895, 39880, 41874, 49466, 55832, 59820, 69790, 74199, 83748, 98932, 104685, 119640, 123665, 139580, 148398, 167496, 173131, 197864, 209370, 247330, 279160, 296796, 346262, 370995, 418740, 494660, 519393, 593592, 692524, 741990, 837480, 865655, 989320, 1038786, 1385048, 1483980, 1731310, 2077572, 2596965, 2967960, 3462620, 4155144, 5193930, 6925240, 10387860, 20775720, 24658801, 49317602, 73976403, 98635204, 123294005, 147952806, 172611607, 197270408, 246588010, 295905612, 345223214, 369882015, 493176020, 517834821, 591811224, 690446428, 739764030, 863058035, 986352040, 1035669642, 1380892856, 1479528060, 1726116070, 2071339284, 2589174105, 2959056120, 3452232140, 4142678568, 5178348210, 6904464280, 10356696420, 20713392840]

約数ペア:

[(1, 20713392840), (2, 10356696420), (3, 6904464280), (4, 5178348210), (5, 4142678568), (6, 3452232140), (7, 2959056120), (8, 2589174105), (10, 2071339284), (12, 1726116070), (14, 1479528060), (15, 1380892856), (20, 1035669642), (21, 986352040), (24, 863058035), (28, 739764030), (30, 690446428), (35, 591811224), (40, 517834821), (42, 493176020), (56, 369882015), (60, 345223214), (70, 295905612), (84, 246588010), (105, 197270408), (120, 172611607), (140, 147952806), (168, 123294005), (210, 98635204), (280, 73976403), (420, 49317602), (840, 24658801), (997, 20775720), (1994, 10387860), (2991, 6925240), (3988, 5193930), (4985, 4155144), (5982, 3462620), (6979, 2967960), (7976, 2596965), (9970, 2077572), (11964, 1731310), (13958, 1483980), (14955, 1385048), (19940, 1038786), (20937, 989320), (23928, 865655), (24733, 837480), (27916, 741990), (29910, 692524), (34895, 593592), (39880, 519393), (41874, 494660), (49466, 418740), (55832, 370995), (59820, 346262), (69790, 296796), (74199, 279160), (83748, 247330), (98932, 209370), (104685, 197864), (119640, 173131), (123665, 167496), (139580, 148398)]