78465280

素因数分解:

$2^8\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1039}}^1$

素因数の和:1119

約数の個数: 72

約数和(自身を含む): 191318400

約数和(自身を除く): 112853120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 64, 80, 118, 128, 160, 236, 256, 295, 320, 472, 590, 640, 944, 1039, 1180, 1280, 1888, 2078, 2360, 3776, 4156, 4720, 5195, 7552, 8312, 9440, 10390, 15104, 16624, 18880, 20780, 33248, 37760, 41560, 61301, 66496, 75520, 83120, 122602, 132992, 166240, 245204, 265984, 306505, 332480, 490408, 613010, 664960, 980816, 1226020, 1329920, 1961632, 2452040, 3923264, 4904080, 7846528, 9808160, 15693056, 19616320, 39232640, 78465280]

約数ペア:

[(1, 78465280), (2, 39232640), (4, 19616320), (5, 15693056), (8, 9808160), (10, 7846528), (16, 4904080), (20, 3923264), (32, 2452040), (40, 1961632), (59, 1329920), (64, 1226020), (80, 980816), (118, 664960), (128, 613010), (160, 490408), (236, 332480), (256, 306505), (295, 265984), (320, 245204), (472, 166240), (590, 132992), (640, 122602), (944, 83120), (1039, 75520), (1180, 66496), (1280, 61301), (1888, 41560), (2078, 37760), (2360, 33248), (3776, 20780), (4156, 18880), (4720, 16624), (5195, 15104), (7552, 10390), (8312, 9440)]