78902320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140897}}^1$

素因数の和:140917

約数の個数: 40

約数和(自身を含む): 209656224

約数和(自身を除く): 130753904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140897, 281794, 563588, 704485, 986279, 1127176, 1408970, 1972558, 2254352, 2817940, 3945116, 4931395, 5635880, 7890232, 9862790, 11271760, 15780464, 19725580, 39451160, 78902320]

約数ペア:

[(1, 78902320), (2, 39451160), (4, 19725580), (5, 15780464), (7, 11271760), (8, 9862790), (10, 7890232), (14, 5635880), (16, 4931395), (20, 3945116), (28, 2817940), (35, 2254352), (40, 1972558), (56, 1408970), (70, 1127176), (80, 986279), (112, 704485), (140, 563588), (280, 281794), (560, 140897)]