279997172

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:230

約数の個数: 108

約数和(自身を含む): 630866880

約数和(自身を除く): 350869708

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 79, 91, 98, 107, 158, 169, 182, 196, 214, 316, 338, 364, 428, 553, 637, 676, 749, 1027, 1106, 1183, 1274, 1391, 1498, 2054, 2212, 2366, 2548, 2782, 2996, 3871, 4108, 4732, 5243, 5564, 7189, 7742, 8281, 8453, 9737, 10486, 13351, 14378, 15484, 16562, 16906, 18083, 19474, 20972, 26702, 28756, 33124, 33812, 36166, 38948, 50323, 53404, 59171, 68159, 72332, 93457, 100646, 109889, 118342, 126581, 136318, 186914, 201292, 219778, 236684, 253162, 272636, 373828, 414197, 439556, 506324, 654199, 769223, 828394, 886067, 1308398, 1428557, 1538446, 1656788, 1772134, 2616796, 2857114, 3076892, 3544268, 5384561, 5714228, 9999899, 10769122, 19999798, 21538244, 39999596, 69999293, 139998586, 279997172]

約数ペア:

[(1, 279997172), (2, 139998586), (4, 69999293), (7, 39999596), (13, 21538244), (14, 19999798), (26, 10769122), (28, 9999899), (49, 5714228), (52, 5384561), (79, 3544268), (91, 3076892), (98, 2857114), (107, 2616796), (158, 1772134), (169, 1656788), (182, 1538446), (196, 1428557), (214, 1308398), (316, 886067), (338, 828394), (364, 769223), (428, 654199), (553, 506324), (637, 439556), (676, 414197), (749, 373828), (1027, 272636), (1106, 253162), (1183, 236684), (1274, 219778), (1391, 201292), (1498, 186914), (2054, 136318), (2212, 126581), (2366, 118342), (2548, 109889), (2782, 100646), (2996, 93457), (3871, 72332), (4108, 68159), (4732, 59171), (5243, 53404), (5564, 50323), (7189, 38948), (7742, 36166), (8281, 33812), (8453, 33124), (9737, 28756), (10486, 26702), (13351, 20972), (14378, 19474), (15484, 18083), (16562, 16906)]