688228520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:344

約数の個数: 192

約数和(自身を含む): 1906882560

約数和(自身を除く): 1218654040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 47, 49, 56, 62, 70, 94, 98, 124, 140, 155, 188, 196, 217, 235, 241, 245, 248, 280, 310, 329, 376, 392, 434, 470, 482, 490, 620, 658, 868, 940, 964, 980, 1085, 1205, 1240, 1316, 1457, 1519, 1645, 1687, 1736, 1880, 1928, 1960, 2170, 2303, 2410, 2632, 2914, 3038, 3290, 3374, 4340, 4606, 4820, 5828, 6076, 6580, 6748, 7285, 7471, 7595, 8435, 8680, 9212, 9640, 10199, 11327, 11515, 11656, 11809, 12152, 13160, 13496, 14570, 14942, 15190, 16870, 18424, 20398, 22654, 23030, 23618, 29140, 29884, 30380, 33740, 37355, 40796, 45308, 46060, 47236, 50995, 52297, 56635, 58280, 59045, 59768, 60760, 67480, 71393, 74710, 79289, 81592, 90616, 92120, 94472, 101990, 104594, 113270, 118090, 142786, 149420, 158578, 203980, 209188, 226540, 236180, 261485, 285572, 298840, 317156, 351137, 356965, 366079, 396445, 407960, 418376, 453080, 472360, 522970, 555023, 571144, 634312, 702274, 713930, 732158, 792890, 1045940, 1110046, 1404548, 1427860, 1464316, 1585780, 1755685, 1830395, 2091880, 2220092, 2457959, 2775115, 2809096, 2855720, 2928632, 3171560, 3511370, 3660790, 4440184, 4915918, 5550230, 7022740, 7321580, 9831836, 11100460, 12289795, 14045480, 14643160, 17205713, 19663672, 22200920, 24579590, 34411426, 49159180, 68822852, 86028565, 98318360, 137645704, 172057130, 344114260, 688228520]

約数ペア:

[(1, 688228520), (2, 344114260), (4, 172057130), (5, 137645704), (7, 98318360), (8, 86028565), (10, 68822852), (14, 49159180), (20, 34411426), (28, 24579590), (31, 22200920), (35, 19663672), (40, 17205713), (47, 14643160), (49, 14045480), (56, 12289795), (62, 11100460), (70, 9831836), (94, 7321580), (98, 7022740), (124, 5550230), (140, 4915918), (155, 4440184), (188, 3660790), (196, 3511370), (217, 3171560), (235, 2928632), (241, 2855720), (245, 2809096), (248, 2775115), (280, 2457959), (310, 2220092), (329, 2091880), (376, 1830395), (392, 1755685), (434, 1585780), (470, 1464316), (482, 1427860), (490, 1404548), (620, 1110046), (658, 1045940), (868, 792890), (940, 732158), (964, 713930), (980, 702274), (1085, 634312), (1205, 571144), (1240, 555023), (1316, 522970), (1457, 472360), (1519, 453080), (1645, 418376), (1687, 407960), (1736, 396445), (1880, 366079), (1928, 356965), (1960, 351137), (2170, 317156), (2303, 298840), (2410, 285572), (2632, 261485), (2914, 236180), (3038, 226540), (3290, 209188), (3374, 203980), (4340, 158578), (4606, 149420), (4820, 142786), (5828, 118090), (6076, 113270), (6580, 104594), (6748, 101990), (7285, 94472), (7471, 92120), (7595, 90616), (8435, 81592), (8680, 79289), (9212, 74710), (9640, 71393), (10199, 67480), (11327, 60760), (11515, 59768), (11656, 59045), (11809, 58280), (12152, 56635), (13160, 52297), (13496, 50995), (14570, 47236), (14942, 46060), (15190, 45308), (16870, 40796), (18424, 37355), (20398, 33740), (22654, 30380), (23030, 29884), (23618, 29140)]