71605040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2221}}^1$

素因数の和:2278

約数の個数: 80

約数和(自身を含む): 185154816

約数和(自身を除く): 113549776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2221, 2480, 3224, 4030, 4442, 6448, 8060, 8884, 11105, 16120, 17768, 22210, 28873, 32240, 35536, 44420, 57746, 68851, 88840, 115492, 137702, 144365, 177680, 230984, 275404, 288730, 344255, 461968, 550808, 577460, 688510, 895063, 1101616, 1154920, 1377020, 1790126, 2309840, 2754040, 3580252, 4475315, 5508080, 7160504, 8950630, 14321008, 17901260, 35802520, 71605040]

約数ペア:

[(1, 71605040), (2, 35802520), (4, 17901260), (5, 14321008), (8, 8950630), (10, 7160504), (13, 5508080), (16, 4475315), (20, 3580252), (26, 2754040), (31, 2309840), (40, 1790126), (52, 1377020), (62, 1154920), (65, 1101616), (80, 895063), (104, 688510), (124, 577460), (130, 550808), (155, 461968), (208, 344255), (248, 288730), (260, 275404), (310, 230984), (403, 177680), (496, 144365), (520, 137702), (620, 115492), (806, 88840), (1040, 68851), (1240, 57746), (1612, 44420), (2015, 35536), (2221, 32240), (2480, 28873), (3224, 22210), (4030, 17768), (4442, 16120), (6448, 11105), (8060, 8884)]