8809220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 21976920

約数和(自身を除く): 13167700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 101, 140, 178, 196, 202, 245, 356, 404, 445, 490, 505, 623, 707, 890, 980, 1010, 1246, 1414, 1780, 2020, 2492, 2828, 3115, 3535, 4361, 4949, 6230, 7070, 8722, 8989, 9898, 12460, 14140, 17444, 17978, 19796, 21805, 24745, 35956, 43610, 44945, 49490, 62923, 87220, 89890, 98980, 125846, 179780, 251692, 314615, 440461, 629230, 880922, 1258460, 1761844, 2202305, 4404610, 8809220]

約数ペア:

[(1, 8809220), (2, 4404610), (4, 2202305), (5, 1761844), (7, 1258460), (10, 880922), (14, 629230), (20, 440461), (28, 314615), (35, 251692), (49, 179780), (70, 125846), (89, 98980), (98, 89890), (101, 87220), (140, 62923), (178, 49490), (196, 44945), (202, 43610), (245, 35956), (356, 24745), (404, 21805), (445, 19796), (490, 17978), (505, 17444), (623, 14140), (707, 12460), (890, 9898), (980, 8989), (1010, 8722), (1246, 7070), (1414, 6230), (1780, 4949), (2020, 4361), (2492, 3535), (2828, 3115)]