15784940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 34588512

約数和(自身を除く): 18803572

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 83, 148, 166, 185, 257, 332, 370, 415, 514, 740, 830, 1028, 1285, 1660, 2570, 3071, 5140, 6142, 9509, 12284, 15355, 19018, 21331, 30710, 38036, 42662, 47545, 61420, 85324, 95090, 106655, 190180, 213310, 426620, 789247, 1578494, 3156988, 3946235, 7892470, 15784940]

約数ペア:

[(1, 15784940), (2, 7892470), (4, 3946235), (5, 3156988), (10, 1578494), (20, 789247), (37, 426620), (74, 213310), (83, 190180), (148, 106655), (166, 95090), (185, 85324), (257, 61420), (332, 47545), (370, 42662), (415, 38036), (514, 30710), (740, 21331), (830, 19018), (1028, 15355), (1285, 12284), (1660, 9509), (2570, 6142), (3071, 5140)]