17905420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4051}}^1$

素因数の和:4090

約数の個数: 48

約数和(自身を含む): 42886368

約数和(自身を除く): 24980948

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4051, 4420, 8102, 16204, 20255, 40510, 52663, 68867, 81020, 105326, 137734, 210652, 263315, 275468, 344335, 526630, 688670, 895271, 1053260, 1377340, 1790542, 3581084, 4476355, 8952710, 17905420]

約数ペア:

[(1, 17905420), (2, 8952710), (4, 4476355), (5, 3581084), (10, 1790542), (13, 1377340), (17, 1053260), (20, 895271), (26, 688670), (34, 526630), (52, 344335), (65, 275468), (68, 263315), (85, 210652), (130, 137734), (170, 105326), (221, 81020), (260, 68867), (340, 52663), (442, 40510), (884, 20255), (1105, 16204), (2210, 8102), (4051, 4420)]