19664680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 52531200

約数和(自身を除く): 32866520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 79, 98, 127, 140, 158, 196, 245, 254, 280, 316, 392, 395, 490, 508, 553, 632, 635, 790, 889, 980, 1016, 1106, 1270, 1580, 1778, 1960, 2212, 2540, 2765, 3160, 3556, 3871, 4424, 4445, 5080, 5530, 6223, 7112, 7742, 8890, 10033, 11060, 12446, 15484, 17780, 19355, 20066, 22120, 24892, 30968, 31115, 35560, 38710, 40132, 49784, 50165, 62230, 70231, 77420, 80264, 100330, 124460, 140462, 154840, 200660, 248920, 280924, 351155, 401320, 491617, 561848, 702310, 983234, 1404620, 1966468, 2458085, 2809240, 3932936, 4916170, 9832340, 19664680]

約数ペア:

[(1, 19664680), (2, 9832340), (4, 4916170), (5, 3932936), (7, 2809240), (8, 2458085), (10, 1966468), (14, 1404620), (20, 983234), (28, 702310), (35, 561848), (40, 491617), (49, 401320), (56, 351155), (70, 280924), (79, 248920), (98, 200660), (127, 154840), (140, 140462), (158, 124460), (196, 100330), (245, 80264), (254, 77420), (280, 70231), (316, 62230), (392, 50165), (395, 49784), (490, 40132), (508, 38710), (553, 35560), (632, 31115), (635, 30968), (790, 24892), (889, 22120), (980, 20066), (1016, 19355), (1106, 17780), (1270, 15484), (1580, 12446), (1778, 11060), (1960, 10033), (2212, 8890), (2540, 7742), (2765, 7112), (3160, 6223), (3556, 5530), (3871, 5080), (4424, 4445)]