78919400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{8053}}^1$

素因数の和:8083

約数の個数: 72

約数和(自身を含む): 213471270

約数和(自身を除く): 134551870

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 8053, 9800, 16106, 32212, 40265, 56371, 64424, 80530, 112742, 161060, 201325, 225484, 281855, 322120, 394597, 402650, 450968, 563710, 789194, 805300, 1127420, 1409275, 1578388, 1610600, 1972985, 2254840, 2818550, 3156776, 3945970, 5637100, 7891940, 9864925, 11274200, 15783880, 19729850, 39459700, 78919400]

約数ペア:

[(1, 78919400), (2, 39459700), (4, 19729850), (5, 15783880), (7, 11274200), (8, 9864925), (10, 7891940), (14, 5637100), (20, 3945970), (25, 3156776), (28, 2818550), (35, 2254840), (40, 1972985), (49, 1610600), (50, 1578388), (56, 1409275), (70, 1127420), (98, 805300), (100, 789194), (140, 563710), (175, 450968), (196, 402650), (200, 394597), (245, 322120), (280, 281855), (350, 225484), (392, 201325), (490, 161060), (700, 112742), (980, 80530), (1225, 64424), (1400, 56371), (1960, 40265), (2450, 32212), (4900, 16106), (8053, 9800)]