98415940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9901}}^1$

素因数の和:9988

約数の個数: 48

約数和(自身を含む): 239549184

約数和(自身を除く): 141133244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9901, 9940, 19802, 39604, 49505, 69307, 99010, 138614, 198020, 277228, 346535, 693070, 702971, 1386140, 1405942, 2811884, 3514855, 4920797, 7029710, 9841594, 14059420, 19683188, 24603985, 49207970, 98415940]

約数ペア:

[(1, 98415940), (2, 49207970), (4, 24603985), (5, 19683188), (7, 14059420), (10, 9841594), (14, 7029710), (20, 4920797), (28, 3514855), (35, 2811884), (70, 1405942), (71, 1386140), (140, 702971), (142, 693070), (284, 346535), (355, 277228), (497, 198020), (710, 138614), (994, 99010), (1420, 69307), (1988, 49505), (2485, 39604), (4970, 19802), (9901, 9940)]