189078920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1097}}^1$

素因数の和:1278

約数の個数: 64

約数和(自身を含む): 442713600

約数和(自身を除く): 253634680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 139, 155, 248, 278, 310, 556, 620, 695, 1097, 1112, 1240, 1390, 2194, 2780, 4309, 4388, 5485, 5560, 8618, 8776, 10970, 17236, 21545, 21940, 34007, 34472, 43090, 43880, 68014, 86180, 136028, 152483, 170035, 172360, 272056, 304966, 340070, 609932, 680140, 762415, 1219864, 1360280, 1524830, 3049660, 4726973, 6099320, 9453946, 18907892, 23634865, 37815784, 47269730, 94539460, 189078920]

約数ペア:

[(1, 189078920), (2, 94539460), (4, 47269730), (5, 37815784), (8, 23634865), (10, 18907892), (20, 9453946), (31, 6099320), (40, 4726973), (62, 3049660), (124, 1524830), (139, 1360280), (155, 1219864), (248, 762415), (278, 680140), (310, 609932), (556, 340070), (620, 304966), (695, 272056), (1097, 172360), (1112, 170035), (1240, 152483), (1390, 136028), (2194, 86180), (2780, 68014), (4309, 43880), (4388, 43090), (5485, 34472), (5560, 34007), (8618, 21940), (8776, 21545), (10970, 17236)]