988212400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{397}}^1$

素因数の和:556

約数の個数: 180

約数和(自身を含む): 2790559488

約数和(自身を除く): 1802347088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 127, 140, 175, 196, 200, 245, 254, 280, 350, 392, 397, 400, 490, 508, 560, 635, 700, 784, 794, 889, 980, 1016, 1225, 1270, 1400, 1588, 1778, 1960, 1985, 2032, 2450, 2540, 2779, 2800, 3175, 3176, 3556, 3920, 3970, 4445, 4900, 5080, 5558, 6223, 6350, 6352, 7112, 7940, 8890, 9800, 9925, 10160, 11116, 12446, 12700, 13895, 14224, 15880, 17780, 19453, 19600, 19850, 22225, 22232, 24892, 25400, 27790, 31115, 31760, 35560, 38906, 39700, 44450, 44464, 49784, 50419, 50800, 55580, 62230, 69475, 71120, 77812, 79400, 88900, 97265, 99568, 100838, 111160, 124460, 138950, 155575, 155624, 158800, 177800, 194530, 201676, 222320, 248920, 252095, 277900, 311150, 311248, 352933, 355600, 389060, 403352, 486325, 497840, 504190, 555800, 622300, 705866, 778120, 806704, 972650, 1008380, 1111600, 1244600, 1260475, 1411732, 1556240, 1764665, 1945300, 2016760, 2470531, 2489200, 2520950, 2823464, 3529330, 3890600, 4033520, 4941062, 5041900, 5646928, 7058660, 7781200, 8823325, 9882124, 10083800, 12352655, 14117320, 17646650, 19764248, 20167600, 24705310, 28234640, 35293300, 39528496, 49410620, 61763275, 70586600, 98821240, 123526550, 141173200, 197642480, 247053100, 494106200, 988212400]

約数ペア:

[(1, 988212400), (2, 494106200), (4, 247053100), (5, 197642480), (7, 141173200), (8, 123526550), (10, 98821240), (14, 70586600), (16, 61763275), (20, 49410620), (25, 39528496), (28, 35293300), (35, 28234640), (40, 24705310), (49, 20167600), (50, 19764248), (56, 17646650), (70, 14117320), (80, 12352655), (98, 10083800), (100, 9882124), (112, 8823325), (127, 7781200), (140, 7058660), (175, 5646928), (196, 5041900), (200, 4941062), (245, 4033520), (254, 3890600), (280, 3529330), (350, 2823464), (392, 2520950), (397, 2489200), (400, 2470531), (490, 2016760), (508, 1945300), (560, 1764665), (635, 1556240), (700, 1411732), (784, 1260475), (794, 1244600), (889, 1111600), (980, 1008380), (1016, 972650), (1225, 806704), (1270, 778120), (1400, 705866), (1588, 622300), (1778, 555800), (1960, 504190), (1985, 497840), (2032, 486325), (2450, 403352), (2540, 389060), (2779, 355600), (2800, 352933), (3175, 311248), (3176, 311150), (3556, 277900), (3920, 252095), (3970, 248920), (4445, 222320), (4900, 201676), (5080, 194530), (5558, 177800), (6223, 158800), (6350, 155624), (6352, 155575), (7112, 138950), (7940, 124460), (8890, 111160), (9800, 100838), (9925, 99568), (10160, 97265), (11116, 88900), (12446, 79400), (12700, 77812), (13895, 71120), (14224, 69475), (15880, 62230), (17780, 55580), (19453, 50800), (19600, 50419), (19850, 49784), (22225, 44464), (22232, 44450), (24892, 39700), (25400, 38906), (27790, 35560), (31115, 31760)]