398202910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:530

約数の個数: 96

約数和(自身を含む): 882031680

約数和(自身を除く): 483828770

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 89, 98, 115, 161, 178, 230, 245, 322, 397, 445, 490, 623, 794, 805, 890, 1127, 1246, 1610, 1985, 2047, 2254, 2779, 3115, 3970, 4094, 4361, 5558, 5635, 6230, 8722, 9131, 10235, 11270, 13895, 14329, 18262, 19453, 20470, 21805, 27790, 28658, 35333, 38906, 43610, 45655, 63917, 70666, 71645, 91310, 97265, 100303, 127834, 143290, 176665, 194530, 200606, 247331, 319585, 353330, 447419, 494662, 501515, 639170, 812659, 894838, 1003030, 1236655, 1625318, 1731317, 2237095, 2473310, 3462634, 4063295, 4474190, 5688613, 8126590, 8656585, 11377226, 17313170, 28443065, 39820291, 56886130, 79640582, 199101455, 398202910]

約数ペア:

[(1, 398202910), (2, 199101455), (5, 79640582), (7, 56886130), (10, 39820291), (14, 28443065), (23, 17313170), (35, 11377226), (46, 8656585), (49, 8126590), (70, 5688613), (89, 4474190), (98, 4063295), (115, 3462634), (161, 2473310), (178, 2237095), (230, 1731317), (245, 1625318), (322, 1236655), (397, 1003030), (445, 894838), (490, 812659), (623, 639170), (794, 501515), (805, 494662), (890, 447419), (1127, 353330), (1246, 319585), (1610, 247331), (1985, 200606), (2047, 194530), (2254, 176665), (2779, 143290), (3115, 127834), (3970, 100303), (4094, 97265), (4361, 91310), (5558, 71645), (5635, 70666), (6230, 63917), (8722, 45655), (9131, 43610), (10235, 38906), (11270, 35333), (13895, 28658), (14329, 27790), (18262, 21805), (19453, 20470)]