1640986431

素因数分解:

$3^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{433}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 2666496000

約数和(自身を除く): 1025509569

約数列:

[1, 3, 7, 21, 29, 49, 87, 127, 147, 203, 343, 381, 433, 609, 889, 1029, 1299, 1421, 2667, 3031, 3683, 4263, 6223, 9093, 9947, 11049, 12557, 18669, 21217, 25781, 29841, 37671, 43561, 54991, 63651, 77343, 87899, 130683, 148519, 164973, 180467, 263697, 384937, 445557, 541401, 615293, 1154811, 1263269, 1594739, 1845879, 2694559, 3789807, 4307051, 4784217, 8083677, 11163173, 12921153, 18861913, 33489519, 56585739, 78142211, 234426633, 546995477, 1640986431]

約数ペア:

[(1, 1640986431), (3, 546995477), (7, 234426633), (21, 78142211), (29, 56585739), (49, 33489519), (87, 18861913), (127, 12921153), (147, 11163173), (203, 8083677), (343, 4784217), (381, 4307051), (433, 3789807), (609, 2694559), (889, 1845879), (1029, 1594739), (1299, 1263269), (1421, 1154811), (2667, 615293), (3031, 541401), (3683, 445557), (4263, 384937), (6223, 263697), (9093, 180467), (9947, 164973), (11049, 148519), (12557, 130683), (18669, 87899), (21217, 77343), (25781, 63651), (29841, 54991), (37671, 43561)]