20001900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1093}}^1$

素因数の和:1171

約数の個数: 72

約数和(自身を含む): 58874704

約数和(自身を除く): 38872804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 61, 75, 100, 122, 150, 183, 244, 300, 305, 366, 610, 732, 915, 1093, 1220, 1525, 1830, 2186, 3050, 3279, 3660, 4372, 4575, 5465, 6100, 6558, 9150, 10930, 13116, 16395, 18300, 21860, 27325, 32790, 54650, 65580, 66673, 81975, 109300, 133346, 163950, 200019, 266692, 327900, 333365, 400038, 666730, 800076, 1000095, 1333460, 1666825, 2000190, 3333650, 4000380, 5000475, 6667300, 10000950, 20001900]

約数ペア:

[(1, 20001900), (2, 10000950), (3, 6667300), (4, 5000475), (5, 4000380), (6, 3333650), (10, 2000190), (12, 1666825), (15, 1333460), (20, 1000095), (25, 800076), (30, 666730), (50, 400038), (60, 333365), (61, 327900), (75, 266692), (100, 200019), (122, 163950), (150, 133346), (183, 109300), (244, 81975), (300, 66673), (305, 65580), (366, 54650), (610, 32790), (732, 27325), (915, 21860), (1093, 18300), (1220, 16395), (1525, 13116), (1830, 10930), (2186, 9150), (3050, 6558), (3279, 6100), (3660, 5465), (4372, 4575)]