42393820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 104569920

約数和(自身を除く): 62176100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 181, 196, 239, 245, 362, 478, 490, 724, 905, 956, 980, 1195, 1267, 1673, 1810, 2390, 2534, 3346, 3620, 4780, 5068, 6335, 6692, 8365, 8869, 11711, 12670, 16730, 17738, 23422, 25340, 33460, 35476, 43259, 44345, 46844, 58555, 86518, 88690, 117110, 173036, 177380, 216295, 234220, 302813, 432590, 605626, 865180, 1211252, 1514065, 2119691, 3028130, 4239382, 6056260, 8478764, 10598455, 21196910, 42393820]

約数ペア:

[(1, 42393820), (2, 21196910), (4, 10598455), (5, 8478764), (7, 6056260), (10, 4239382), (14, 3028130), (20, 2119691), (28, 1514065), (35, 1211252), (49, 865180), (70, 605626), (98, 432590), (140, 302813), (181, 234220), (196, 216295), (239, 177380), (245, 173036), (362, 117110), (478, 88690), (490, 86518), (724, 58555), (905, 46844), (956, 44345), (980, 43259), (1195, 35476), (1267, 33460), (1673, 25340), (1810, 23422), (2390, 17738), (2534, 16730), (3346, 12670), (3620, 11711), (4780, 8869), (5068, 8365), (6335, 6692)]