1378525820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{32713}}^1$

素因数の和:32779

約数の個数: 72

約数和(自身を含む): 3445961904

約数和(自身を除く): 2067436084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 2107, 3010, 4214, 6020, 8428, 10535, 21070, 32713, 42140, 65426, 130852, 163565, 228991, 327130, 457982, 654260, 915964, 1144955, 1406659, 1602937, 2289910, 2813318, 3205874, 4579820, 5626636, 6411748, 7033295, 8014685, 9846613, 14066590, 16029370, 19693226, 28133180, 32058740, 39386452, 49233065, 68926291, 98466130, 137852582, 196932260, 275705164, 344631455, 689262910, 1378525820]

約数ペア:

[(1, 1378525820), (2, 689262910), (4, 344631455), (5, 275705164), (7, 196932260), (10, 137852582), (14, 98466130), (20, 68926291), (28, 49233065), (35, 39386452), (43, 32058740), (49, 28133180), (70, 19693226), (86, 16029370), (98, 14066590), (140, 9846613), (172, 8014685), (196, 7033295), (215, 6411748), (245, 5626636), (301, 4579820), (430, 3205874), (490, 2813318), (602, 2289910), (860, 1602937), (980, 1406659), (1204, 1144955), (1505, 915964), (2107, 654260), (3010, 457982), (4214, 327130), (6020, 228991), (8428, 163565), (10535, 130852), (21070, 65426), (32713, 42140)]