81202380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{487}}^1$

素因数の和:903

約数の個数: 96

約数和(自身を含む): 261037056

約数和(自身を除く): 179834676

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 397, 420, 487, 794, 974, 1191, 1461, 1588, 1948, 1985, 2382, 2435, 2779, 2922, 3409, 3970, 4764, 4870, 5558, 5844, 5955, 6818, 7305, 7940, 8337, 9740, 10227, 11116, 11910, 13636, 13895, 14610, 16674, 17045, 20454, 23820, 27790, 29220, 33348, 34090, 40908, 41685, 51135, 55580, 68180, 83370, 102270, 166740, 193339, 204540, 386678, 580017, 773356, 966695, 1160034, 1353373, 1933390, 2320068, 2706746, 2900085, 3866780, 4060119, 5413492, 5800170, 6766865, 8120238, 11600340, 13533730, 16240476, 20300595, 27067460, 40601190, 81202380]

約数ペア:

[(1, 81202380), (2, 40601190), (3, 27067460), (4, 20300595), (5, 16240476), (6, 13533730), (7, 11600340), (10, 8120238), (12, 6766865), (14, 5800170), (15, 5413492), (20, 4060119), (21, 3866780), (28, 2900085), (30, 2706746), (35, 2320068), (42, 1933390), (60, 1353373), (70, 1160034), (84, 966695), (105, 773356), (140, 580017), (210, 386678), (397, 204540), (420, 193339), (487, 166740), (794, 102270), (974, 83370), (1191, 68180), (1461, 55580), (1588, 51135), (1948, 41685), (1985, 40908), (2382, 34090), (2435, 33348), (2779, 29220), (2922, 27790), (3409, 23820), (3970, 20454), (4764, 17045), (4870, 16674), (5558, 14610), (5844, 13895), (5955, 13636), (6818, 11910), (7305, 11116), (7940, 10227), (8337, 9740)]