309396040

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1\times {\mathrm{373}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 708879600

約数和(自身を除く): 399483560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 233, 356, 373, 445, 466, 712, 746, 890, 932, 1165, 1492, 1780, 1864, 1865, 2330, 2984, 3560, 3730, 4660, 7460, 9320, 14920, 20737, 33197, 41474, 66394, 82948, 86909, 103685, 132788, 165896, 165985, 173818, 207370, 265576, 331970, 347636, 414740, 434545, 663940, 695272, 829480, 869090, 1327880, 1738180, 3476360, 7734901, 15469802, 30939604, 38674505, 61879208, 77349010, 154698020, 309396040]

約数ペア:

[(1, 309396040), (2, 154698020), (4, 77349010), (5, 61879208), (8, 38674505), (10, 30939604), (20, 15469802), (40, 7734901), (89, 3476360), (178, 1738180), (233, 1327880), (356, 869090), (373, 829480), (445, 695272), (466, 663940), (712, 434545), (746, 414740), (890, 347636), (932, 331970), (1165, 265576), (1492, 207370), (1780, 173818), (1864, 165985), (1865, 165896), (2330, 132788), (2984, 103685), (3560, 86909), (3730, 82948), (4660, 66394), (7460, 41474), (9320, 33197), (14920, 20737)]