28968940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1447}}^1$

素因数の和:1487

約数の個数: 96

約数和(自身を含む): 81736704

約数和(自身を除く): 52767764

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1447, 1540, 1820, 2002, 2860, 2894, 4004, 5005, 5788, 7235, 10010, 10129, 14470, 15917, 18811, 20020, 20258, 28940, 31834, 37622, 40516, 50645, 63668, 75244, 79585, 94055, 101290, 111419, 131677, 159170, 188110, 202580, 206921, 222838, 263354, 318340, 376220, 413842, 445676, 526708, 557095, 658385, 827684, 1034605, 1114190, 1316770, 1448447, 2069210, 2228380, 2633540, 2896894, 4138420, 5793788, 7242235, 14484470, 28968940]

約数ペア:

[(1, 28968940), (2, 14484470), (4, 7242235), (5, 5793788), (7, 4138420), (10, 2896894), (11, 2633540), (13, 2228380), (14, 2069210), (20, 1448447), (22, 1316770), (26, 1114190), (28, 1034605), (35, 827684), (44, 658385), (52, 557095), (55, 526708), (65, 445676), (70, 413842), (77, 376220), (91, 318340), (110, 263354), (130, 222838), (140, 206921), (143, 202580), (154, 188110), (182, 159170), (220, 131677), (260, 111419), (286, 101290), (308, 94055), (364, 79585), (385, 75244), (455, 63668), (572, 50645), (715, 40516), (770, 37622), (910, 31834), (1001, 28940), (1430, 20258), (1447, 20020), (1540, 18811), (1820, 15917), (2002, 14470), (2860, 10129), (2894, 10010), (4004, 7235), (5005, 5788)]