86783980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{255247}}^1$

素因数の和:255273

約数の個数: 24

約数和(自身を含む): 192967488

約数和(自身を除く): 106183508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 255247, 510494, 1020988, 1276235, 2552470, 4339199, 5104940, 8678398, 17356796, 21695995, 43391990, 86783980]

約数ペア:

[(1, 86783980), (2, 43391990), (4, 21695995), (5, 17356796), (10, 8678398), (17, 5104940), (20, 4339199), (34, 2552470), (68, 1276235), (85, 1020988), (170, 510494), (340, 255247)]