49420420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{239}}^1$

素因数の和:473

約数の個数: 72

約数和(自身を含む): 121806720

約数和(自身を除く): 72386300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 211, 239, 245, 422, 478, 490, 844, 956, 980, 1055, 1195, 1477, 1673, 2110, 2390, 2954, 3346, 4220, 4780, 5908, 6692, 7385, 8365, 10339, 11711, 14770, 16730, 20678, 23422, 29540, 33460, 41356, 46844, 50429, 51695, 58555, 100858, 103390, 117110, 201716, 206780, 234220, 252145, 353003, 504290, 706006, 1008580, 1412012, 1765015, 2471021, 3530030, 4942042, 7060060, 9884084, 12355105, 24710210, 49420420]

約数ペア:

[(1, 49420420), (2, 24710210), (4, 12355105), (5, 9884084), (7, 7060060), (10, 4942042), (14, 3530030), (20, 2471021), (28, 1765015), (35, 1412012), (49, 1008580), (70, 706006), (98, 504290), (140, 353003), (196, 252145), (211, 234220), (239, 206780), (245, 201716), (422, 117110), (478, 103390), (490, 100858), (844, 58555), (956, 51695), (980, 50429), (1055, 46844), (1195, 41356), (1477, 33460), (1673, 29540), (2110, 23422), (2390, 20678), (2954, 16730), (3346, 14770), (4220, 11711), (4780, 10339), (5908, 8365), (6692, 7385)]