87899140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{349}}^1$

素因数の和:629

約数の個数: 72

約数和(自身を含む): 216178200

約数和(自身を除く): 128279060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 257, 349, 490, 514, 698, 980, 1028, 1285, 1396, 1745, 1799, 2443, 2570, 3490, 3598, 4886, 5140, 6980, 7196, 8995, 9772, 12215, 12593, 17101, 17990, 24430, 25186, 34202, 35980, 48860, 50372, 62965, 68404, 85505, 89693, 125930, 171010, 179386, 251860, 342020, 358772, 448465, 627851, 896930, 1255702, 1793860, 2511404, 3139255, 4394957, 6278510, 8789914, 12557020, 17579828, 21974785, 43949570, 87899140]

約数ペア:

[(1, 87899140), (2, 43949570), (4, 21974785), (5, 17579828), (7, 12557020), (10, 8789914), (14, 6278510), (20, 4394957), (28, 3139255), (35, 2511404), (49, 1793860), (70, 1255702), (98, 896930), (140, 627851), (196, 448465), (245, 358772), (257, 342020), (349, 251860), (490, 179386), (514, 171010), (698, 125930), (980, 89693), (1028, 85505), (1285, 68404), (1396, 62965), (1745, 50372), (1799, 48860), (2443, 35980), (2570, 34202), (3490, 25186), (3598, 24430), (4886, 17990), (5140, 17101), (6980, 12593), (7196, 12215), (8995, 9772)]