20399318576

素因数分解:

$2^4\times 7^4\times {\mathrm{13}}^1\times {\mathrm{40847}}^1$

素因数の和:40896

約数の個数: 100

約数和(自身を含む): 49656217632

約数和(自身を除く): 29256899056

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 343, 364, 392, 637, 686, 728, 784, 1274, 1372, 1456, 2401, 2548, 2744, 4459, 4802, 5096, 5488, 8918, 9604, 10192, 17836, 19208, 31213, 35672, 38416, 40847, 62426, 71344, 81694, 124852, 163388, 249704, 285929, 326776, 499408, 531011, 571858, 653552, 1062022, 1143716, 2001503, 2124044, 2287432, 3717077, 4003006, 4248088, 4574864, 7434154, 8006012, 8496176, 14010521, 14868308, 16012024, 26019539, 28021042, 29736616, 32024048, 52039078, 56042084, 59473232, 98073647, 104078156, 112084168, 182136773, 196147294, 208156312, 224168336, 364273546, 392294588, 416312624, 728547092, 784589176, 1274957411, 1457094184, 1569178352, 2549914822, 2914188368, 5099829644, 10199659288, 20399318576]

約数ペア:

[(1, 20399318576), (2, 10199659288), (4, 5099829644), (7, 2914188368), (8, 2549914822), (13, 1569178352), (14, 1457094184), (16, 1274957411), (26, 784589176), (28, 728547092), (49, 416312624), (52, 392294588), (56, 364273546), (91, 224168336), (98, 208156312), (104, 196147294), (112, 182136773), (182, 112084168), (196, 104078156), (208, 98073647), (343, 59473232), (364, 56042084), (392, 52039078), (637, 32024048), (686, 29736616), (728, 28021042), (784, 26019539), (1274, 16012024), (1372, 14868308), (1456, 14010521), (2401, 8496176), (2548, 8006012), (2744, 7434154), (4459, 4574864), (4802, 4248088), (5096, 4003006), (5488, 3717077), (8918, 2287432), (9604, 2124044), (10192, 2001503), (17836, 1143716), (19208, 1062022), (31213, 653552), (35672, 571858), (38416, 531011), (40847, 499408), (62426, 326776), (71344, 285929), (81694, 249704), (124852, 163388)]