390488120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{809}}^1\times {\mathrm{1097}}^1$

素因数の和:1928

約数の個数: 64

約数和(自身を含む): 960530400

約数和(自身を除く): 570042280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 809, 1097, 1618, 2194, 3236, 4045, 4388, 5485, 6472, 8090, 8776, 8899, 10970, 12067, 16180, 17798, 21940, 24134, 32360, 35596, 43880, 44495, 48268, 60335, 71192, 88990, 96536, 120670, 177980, 241340, 355960, 482680, 887473, 1774946, 3549892, 4437365, 7099784, 8874730, 9762203, 17749460, 19524406, 35498920, 39048812, 48811015, 78097624, 97622030, 195244060, 390488120]

約数ペア:

[(1, 390488120), (2, 195244060), (4, 97622030), (5, 78097624), (8, 48811015), (10, 39048812), (11, 35498920), (20, 19524406), (22, 17749460), (40, 9762203), (44, 8874730), (55, 7099784), (88, 4437365), (110, 3549892), (220, 1774946), (440, 887473), (809, 482680), (1097, 355960), (1618, 241340), (2194, 177980), (3236, 120670), (4045, 96536), (4388, 88990), (5485, 71192), (6472, 60335), (8090, 48268), (8776, 44495), (8899, 43880), (10970, 35596), (12067, 32360), (16180, 24134), (17798, 21940)]