174396820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:905

約数の個数: 96

約数和(自身を含む): 425335680

約数和(自身を除く): 250938860

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 43, 52, 65, 76, 86, 95, 130, 172, 190, 215, 247, 260, 380, 430, 494, 559, 817, 821, 860, 988, 1118, 1235, 1634, 1642, 2236, 2470, 2795, 3268, 3284, 4085, 4105, 4940, 5590, 8170, 8210, 10621, 10673, 11180, 15599, 16340, 16420, 21242, 21346, 31198, 35303, 42484, 42692, 53105, 53365, 62396, 70606, 77995, 106210, 106730, 141212, 155990, 176515, 202787, 212420, 213460, 311980, 353030, 405574, 458939, 670757, 706060, 811148, 917878, 1013935, 1341514, 1835756, 2027870, 2294695, 2683028, 3353785, 4055740, 4589390, 6707570, 8719841, 9178780, 13415140, 17439682, 34879364, 43599205, 87198410, 174396820]

約数ペア:

[(1, 174396820), (2, 87198410), (4, 43599205), (5, 34879364), (10, 17439682), (13, 13415140), (19, 9178780), (20, 8719841), (26, 6707570), (38, 4589390), (43, 4055740), (52, 3353785), (65, 2683028), (76, 2294695), (86, 2027870), (95, 1835756), (130, 1341514), (172, 1013935), (190, 917878), (215, 811148), (247, 706060), (260, 670757), (380, 458939), (430, 405574), (494, 353030), (559, 311980), (817, 213460), (821, 212420), (860, 202787), (988, 176515), (1118, 155990), (1235, 141212), (1634, 106730), (1642, 106210), (2236, 77995), (2470, 70606), (2795, 62396), (3268, 53365), (3284, 53105), (4085, 42692), (4105, 42484), (4940, 35303), (5590, 31198), (8170, 21346), (8210, 21242), (10621, 16420), (10673, 16340), (11180, 15599)]