391999140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167521}}^1$

素因数の和:167549

約数の個数: 72

約数和(自身を含む): 1280538168

約数和(自身を除く): 888539028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 167521, 335042, 502563, 670084, 837605, 1005126, 1507689, 1675210, 2010252, 2177773, 2512815, 3015378, 3350420, 4355546, 5025630, 6030756, 6533319, 7538445, 8711092, 10051260, 10888865, 13066638, 15076890, 19599957, 21777730, 26133276, 30153780, 32666595, 39199914, 43555460, 65333190, 78399828, 97999785, 130666380, 195999570, 391999140]

約数ペア:

[(1, 391999140), (2, 195999570), (3, 130666380), (4, 97999785), (5, 78399828), (6, 65333190), (9, 43555460), (10, 39199914), (12, 32666595), (13, 30153780), (15, 26133276), (18, 21777730), (20, 19599957), (26, 15076890), (30, 13066638), (36, 10888865), (39, 10051260), (45, 8711092), (52, 7538445), (60, 6533319), (65, 6030756), (78, 5025630), (90, 4355546), (117, 3350420), (130, 3015378), (156, 2512815), (180, 2177773), (195, 2010252), (234, 1675210), (260, 1507689), (390, 1005126), (468, 837605), (585, 670084), (780, 502563), (1170, 335042), (2340, 167521)]