259124920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{158003}}^1$

素因数の和:158055

約数の個数: 32

約数和(自身を含む): 597255120

約数和(自身を除く): 338130200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 158003, 316006, 632012, 790015, 1264024, 1580030, 3160060, 6320120, 6478123, 12956246, 25912492, 32390615, 51824984, 64781230, 129562460, 259124920]

約数ペア:

[(1, 259124920), (2, 129562460), (4, 64781230), (5, 51824984), (8, 32390615), (10, 25912492), (20, 12956246), (40, 6478123), (41, 6320120), (82, 3160060), (164, 1580030), (205, 1264024), (328, 790015), (410, 632012), (820, 316006), (1640, 158003)]