389729732

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:997

約数の個数: 72

約数和(自身を含む): 829118808

約数和(自身を除く): 439389076

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 61, 74, 98, 122, 148, 196, 244, 259, 427, 518, 854, 881, 1036, 1708, 1762, 1813, 2257, 2989, 3524, 3626, 4514, 5978, 6167, 7252, 9028, 11956, 12334, 15799, 24668, 31598, 32597, 43169, 53741, 63196, 65194, 86338, 107482, 110593, 130388, 172676, 214964, 221186, 228179, 376187, 442372, 456358, 752374, 912716, 1504748, 1597253, 1988417, 2633309, 3194506, 3976834, 5266618, 6389012, 7953668, 10533236, 13918919, 27837838, 55675676, 97432433, 194864866, 389729732]

約数ペア:

[(1, 389729732), (2, 194864866), (4, 97432433), (7, 55675676), (14, 27837838), (28, 13918919), (37, 10533236), (49, 7953668), (61, 6389012), (74, 5266618), (98, 3976834), (122, 3194506), (148, 2633309), (196, 1988417), (244, 1597253), (259, 1504748), (427, 912716), (518, 752374), (854, 456358), (881, 442372), (1036, 376187), (1708, 228179), (1762, 221186), (1813, 214964), (2257, 172676), (2989, 130388), (3524, 110593), (3626, 107482), (4514, 86338), (5978, 65194), (6167, 63196), (7252, 53741), (9028, 43169), (11956, 32597), (12334, 31598), (15799, 24668)]