28613880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1303}}^1$

素因数の和:1381

約数の個数: 96

約数和(自身を含む): 94592160

約数和(自身を除く): 65978280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 61, 72, 90, 120, 122, 180, 183, 244, 305, 360, 366, 488, 549, 610, 732, 915, 1098, 1220, 1303, 1464, 1830, 2196, 2440, 2606, 2745, 3660, 3909, 4392, 5212, 5490, 6515, 7320, 7818, 10424, 10980, 11727, 13030, 15636, 19545, 21960, 23454, 26060, 31272, 39090, 46908, 52120, 58635, 78180, 79483, 93816, 117270, 156360, 158966, 234540, 238449, 317932, 397415, 469080, 476898, 635864, 715347, 794830, 953796, 1192245, 1430694, 1589660, 1907592, 2384490, 2861388, 3179320, 3576735, 4768980, 5722776, 7153470, 9537960, 14306940, 28613880]

約数ペア:

[(1, 28613880), (2, 14306940), (3, 9537960), (4, 7153470), (5, 5722776), (6, 4768980), (8, 3576735), (9, 3179320), (10, 2861388), (12, 2384490), (15, 1907592), (18, 1589660), (20, 1430694), (24, 1192245), (30, 953796), (36, 794830), (40, 715347), (45, 635864), (60, 476898), (61, 469080), (72, 397415), (90, 317932), (120, 238449), (122, 234540), (180, 158966), (183, 156360), (244, 117270), (305, 93816), (360, 79483), (366, 78180), (488, 58635), (549, 52120), (610, 46908), (732, 39090), (915, 31272), (1098, 26060), (1220, 23454), (1303, 21960), (1464, 19545), (1830, 15636), (2196, 13030), (2440, 11727), (2606, 10980), (2745, 10424), (3660, 7818), (3909, 7320), (4392, 6515), (5212, 5490)]