988981840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{5179}}^1$

素因数の和:5241

約数の個数: 160

約数和(自身を含む): 2959810560

約数和(自身を除く): 1970828720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 80, 88, 110, 112, 124, 140, 154, 155, 176, 217, 220, 248, 280, 308, 310, 341, 385, 434, 440, 496, 560, 616, 620, 682, 770, 868, 880, 1085, 1232, 1240, 1364, 1540, 1705, 1736, 2170, 2387, 2480, 2728, 3080, 3410, 3472, 4340, 4774, 5179, 5456, 6160, 6820, 8680, 9548, 10358, 11935, 13640, 17360, 19096, 20716, 23870, 25895, 27280, 36253, 38192, 41432, 47740, 51790, 56969, 72506, 82864, 95480, 103580, 113938, 145012, 160549, 181265, 190960, 207160, 227876, 284845, 290024, 321098, 362530, 398783, 414320, 455752, 569690, 580048, 642196, 725060, 797566, 802745, 911504, 1123843, 1139380, 1284392, 1450120, 1595132, 1605490, 1766039, 1993915, 2247686, 2278760, 2568784, 2900240, 3190264, 3210980, 3532078, 3987830, 4495372, 4557520, 5619215, 6380528, 6421960, 7064156, 7975660, 8830195, 8990744, 11238430, 12362273, 12843920, 14128312, 15951320, 17660390, 17981488, 22476860, 24724546, 28256624, 31902640, 35320780, 44953720, 49449092, 61811365, 70641560, 89907440, 98898184, 123622730, 141283120, 197796368, 247245460, 494490920, 988981840]

約数ペア:

[(1, 988981840), (2, 494490920), (4, 247245460), (5, 197796368), (7, 141283120), (8, 123622730), (10, 98898184), (11, 89907440), (14, 70641560), (16, 61811365), (20, 49449092), (22, 44953720), (28, 35320780), (31, 31902640), (35, 28256624), (40, 24724546), (44, 22476860), (55, 17981488), (56, 17660390), (62, 15951320), (70, 14128312), (77, 12843920), (80, 12362273), (88, 11238430), (110, 8990744), (112, 8830195), (124, 7975660), (140, 7064156), (154, 6421960), (155, 6380528), (176, 5619215), (217, 4557520), (220, 4495372), (248, 3987830), (280, 3532078), (308, 3210980), (310, 3190264), (341, 2900240), (385, 2568784), (434, 2278760), (440, 2247686), (496, 1993915), (560, 1766039), (616, 1605490), (620, 1595132), (682, 1450120), (770, 1284392), (868, 1139380), (880, 1123843), (1085, 911504), (1232, 802745), (1240, 797566), (1364, 725060), (1540, 642196), (1705, 580048), (1736, 569690), (2170, 455752), (2387, 414320), (2480, 398783), (2728, 362530), (3080, 321098), (3410, 290024), (3472, 284845), (4340, 227876), (4774, 207160), (5179, 190960), (5456, 181265), (6160, 160549), (6820, 145012), (8680, 113938), (9548, 103580), (10358, 95480), (11935, 82864), (13640, 72506), (17360, 56969), (19096, 51790), (20716, 47740), (23870, 41432), (25895, 38192), (27280, 36253)]