78988420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{13121}}^1$

素因数の和:13180

約数の個数: 48

約数和(自身を含む): 193995648

約数和(自身を除く): 115007228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 6020, 13121, 26242, 52484, 65605, 91847, 131210, 183694, 262420, 367388, 459235, 564203, 918470, 1128406, 1836940, 2256812, 2821015, 3949421, 5642030, 7898842, 11284060, 15797684, 19747105, 39494210, 78988420]

約数ペア:

[(1, 78988420), (2, 39494210), (4, 19747105), (5, 15797684), (7, 11284060), (10, 7898842), (14, 5642030), (20, 3949421), (28, 2821015), (35, 2256812), (43, 1836940), (70, 1128406), (86, 918470), (140, 564203), (172, 459235), (215, 367388), (301, 262420), (430, 183694), (602, 131210), (860, 91847), (1204, 65605), (1505, 52484), (3010, 26242), (6020, 13121)]