213552800

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:239

約数の個数: 144

約数和(自身を含む): 549964800

約数和(自身を除く): 336412000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 79, 80, 100, 109, 124, 155, 158, 160, 200, 218, 248, 310, 316, 395, 400, 436, 496, 545, 620, 632, 775, 790, 800, 872, 992, 1090, 1240, 1264, 1550, 1580, 1744, 1975, 2180, 2449, 2480, 2528, 2725, 3100, 3160, 3379, 3488, 3950, 4360, 4898, 4960, 5450, 6200, 6320, 6758, 7900, 8611, 8720, 9796, 10900, 12245, 12400, 12640, 13516, 15800, 16895, 17222, 17440, 19592, 21800, 24490, 24800, 27032, 31600, 33790, 34444, 39184, 43055, 43600, 48980, 54064, 61225, 63200, 67580, 68888, 78368, 84475, 86110, 87200, 97960, 108128, 122450, 135160, 137776, 168950, 172220, 195920, 215275, 244900, 266941, 270320, 275552, 337900, 344440, 391840, 430550, 489800, 533882, 540640, 675800, 688880, 861100, 979600, 1067764, 1334705, 1351600, 1377760, 1722200, 1959200, 2135528, 2669410, 2703200, 3444400, 4271056, 5338820, 6673525, 6888800, 8542112, 10677640, 13347050, 21355280, 26694100, 42710560, 53388200, 106776400, 213552800]

約数ペア:

[(1, 213552800), (2, 106776400), (4, 53388200), (5, 42710560), (8, 26694100), (10, 21355280), (16, 13347050), (20, 10677640), (25, 8542112), (31, 6888800), (32, 6673525), (40, 5338820), (50, 4271056), (62, 3444400), (79, 2703200), (80, 2669410), (100, 2135528), (109, 1959200), (124, 1722200), (155, 1377760), (158, 1351600), (160, 1334705), (200, 1067764), (218, 979600), (248, 861100), (310, 688880), (316, 675800), (395, 540640), (400, 533882), (436, 489800), (496, 430550), (545, 391840), (620, 344440), (632, 337900), (775, 275552), (790, 270320), (800, 266941), (872, 244900), (992, 215275), (1090, 195920), (1240, 172220), (1264, 168950), (1550, 137776), (1580, 135160), (1744, 122450), (1975, 108128), (2180, 97960), (2449, 87200), (2480, 86110), (2528, 84475), (2725, 78368), (3100, 68888), (3160, 67580), (3379, 63200), (3488, 61225), (3950, 54064), (4360, 48980), (4898, 43600), (4960, 43055), (5450, 39184), (6200, 34444), (6320, 33790), (6758, 31600), (7900, 27032), (8611, 24800), (8720, 24490), (9796, 21800), (10900, 19592), (12245, 17440), (12400, 17222), (12640, 16895), (13516, 15800)]