1994572160

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3203}}^1$

素因数の和:3368

約数の個数: 128

約数和(自身を含む): 5490374400

約数和(自身を除く): 3495802240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 139, 140, 160, 224, 278, 280, 320, 448, 556, 560, 640, 695, 896, 973, 1112, 1120, 1390, 1946, 2224, 2240, 2780, 3203, 3892, 4448, 4480, 4865, 5560, 6406, 7784, 8896, 9730, 11120, 12812, 15568, 16015, 17792, 19460, 22240, 22421, 25624, 31136, 32030, 38920, 44480, 44842, 51248, 62272, 64060, 77840, 88960, 89684, 102496, 112105, 124544, 128120, 155680, 179368, 204992, 224210, 256240, 311360, 358736, 409984, 445217, 448420, 512480, 622720, 717472, 890434, 896840, 1024960, 1434944, 1780868, 1793680, 2049920, 2226085, 2869888, 3116519, 3561736, 3587360, 4452170, 6233038, 7123472, 7174720, 8904340, 12466076, 14246944, 14349440, 15582595, 17808680, 24932152, 28493888, 31165190, 35617360, 49864304, 56987776, 62330380, 71234720, 99728608, 124660760, 142469440, 199457216, 249321520, 284938880, 398914432, 498643040, 997286080, 1994572160]

約数ペア:

[(1, 1994572160), (2, 997286080), (4, 498643040), (5, 398914432), (7, 284938880), (8, 249321520), (10, 199457216), (14, 142469440), (16, 124660760), (20, 99728608), (28, 71234720), (32, 62330380), (35, 56987776), (40, 49864304), (56, 35617360), (64, 31165190), (70, 28493888), (80, 24932152), (112, 17808680), (128, 15582595), (139, 14349440), (140, 14246944), (160, 12466076), (224, 8904340), (278, 7174720), (280, 7123472), (320, 6233038), (448, 4452170), (556, 3587360), (560, 3561736), (640, 3116519), (695, 2869888), (896, 2226085), (973, 2049920), (1112, 1793680), (1120, 1780868), (1390, 1434944), (1946, 1024960), (2224, 896840), (2240, 890434), (2780, 717472), (3203, 622720), (3892, 512480), (4448, 448420), (4480, 445217), (4865, 409984), (5560, 358736), (6406, 311360), (7784, 256240), (8896, 224210), (9730, 204992), (11120, 179368), (12812, 155680), (15568, 128120), (16015, 124544), (17792, 112105), (19460, 102496), (22240, 89684), (22421, 88960), (25624, 77840), (31136, 64060), (32030, 62272), (38920, 51248), (44480, 44842)]