78506428

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2801}}^1$

素因数の和:2843

約数の個数: 72

約数和(自身を含む): 187823664

約数和(自身を除く): 109317236

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 1001, 1078, 1274, 2002, 2156, 2548, 2801, 4004, 5602, 7007, 11204, 14014, 19607, 28028, 30811, 36413, 39214, 61622, 72826, 78428, 123244, 137249, 145652, 215677, 254891, 274498, 400543, 431354, 509782, 548996, 801086, 862708, 1019564, 1509739, 1602172, 1784237, 2803801, 3019478, 3568474, 5607602, 6038956, 7136948, 11215204, 19626607, 39253214, 78506428]

約数ペア:

[(1, 78506428), (2, 39253214), (4, 19626607), (7, 11215204), (11, 7136948), (13, 6038956), (14, 5607602), (22, 3568474), (26, 3019478), (28, 2803801), (44, 1784237), (49, 1602172), (52, 1509739), (77, 1019564), (91, 862708), (98, 801086), (143, 548996), (154, 509782), (182, 431354), (196, 400543), (286, 274498), (308, 254891), (364, 215677), (539, 145652), (572, 137249), (637, 123244), (1001, 78428), (1078, 72826), (1274, 61622), (2002, 39214), (2156, 36413), (2548, 30811), (2801, 28028), (4004, 19607), (5602, 14014), (7007, 11204)]