28835920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:404

約数の個数: 80

約数和(自身を含む): 71959680

約数和(自身を除く): 43123760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 122, 152, 190, 244, 304, 305, 311, 380, 488, 610, 622, 760, 976, 1159, 1220, 1244, 1520, 1555, 2318, 2440, 2488, 3110, 4636, 4880, 4976, 5795, 5909, 6220, 9272, 11590, 11818, 12440, 18544, 18971, 23180, 23636, 24880, 29545, 37942, 46360, 47272, 59090, 75884, 92720, 94544, 94855, 118180, 151768, 189710, 236360, 303536, 360449, 379420, 472720, 720898, 758840, 1441796, 1517680, 1802245, 2883592, 3604490, 5767184, 7208980, 14417960, 28835920]

約数ペア:

[(1, 28835920), (2, 14417960), (4, 7208980), (5, 5767184), (8, 3604490), (10, 2883592), (16, 1802245), (19, 1517680), (20, 1441796), (38, 758840), (40, 720898), (61, 472720), (76, 379420), (80, 360449), (95, 303536), (122, 236360), (152, 189710), (190, 151768), (244, 118180), (304, 94855), (305, 94544), (311, 92720), (380, 75884), (488, 59090), (610, 47272), (622, 46360), (760, 37942), (976, 29545), (1159, 24880), (1220, 23636), (1244, 23180), (1520, 18971), (1555, 18544), (2318, 12440), (2440, 11818), (2488, 11590), (3110, 9272), (4636, 6220), (4880, 5909), (4976, 5795)]