645359281664

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{40660237}}^1$

素因数の和:40660286

約数の個数: 40

約数和(自身を含む): 1331053551168

約数和(自身を除く): 685694269504

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1984, 3968, 7936, 15872, 40660237, 81320474, 162640948, 325281896, 650563792, 1260467347, 1301127584, 2520934694, 2602255168, 5041869388, 5204510336, 10083738776, 10409020672, 20167477552, 20818041344, 40334955104, 80669910208, 161339820416, 322679640832, 645359281664]

約数ペア:

[(1, 645359281664), (2, 322679640832), (4, 161339820416), (8, 80669910208), (16, 40334955104), (31, 20818041344), (32, 20167477552), (62, 10409020672), (64, 10083738776), (124, 5204510336), (128, 5041869388), (248, 2602255168), (256, 2520934694), (496, 1301127584), (512, 1260467347), (992, 650563792), (1984, 325281896), (3968, 162640948), (7936, 81320474), (15872, 40660237)]