17946520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 42819840

約数和(自身を除く): 24873320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 353, 410, 620, 706, 820, 1240, 1271, 1412, 1640, 1765, 2542, 2824, 3530, 5084, 6355, 7060, 10168, 10943, 12710, 14120, 14473, 21886, 25420, 28946, 43772, 50840, 54715, 57892, 72365, 87544, 109430, 115784, 144730, 218860, 289460, 437720, 448663, 578920, 897326, 1794652, 2243315, 3589304, 4486630, 8973260, 17946520]

約数ペア:

[(1, 17946520), (2, 8973260), (4, 4486630), (5, 3589304), (8, 2243315), (10, 1794652), (20, 897326), (31, 578920), (40, 448663), (41, 437720), (62, 289460), (82, 218860), (124, 144730), (155, 115784), (164, 109430), (205, 87544), (248, 72365), (310, 57892), (328, 54715), (353, 50840), (410, 43772), (620, 28946), (706, 25420), (820, 21886), (1240, 14473), (1271, 14120), (1412, 12710), (1640, 10943), (1765, 10168), (2542, 7060), (2824, 6355), (3530, 5084)]