649728711680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{126900139}}^1$

素因数の和:126900164

約数の個数: 44

約数和(自身を含む): 1558587519480

約数和(自身を除く): 908858807800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 126900139, 253800278, 507600556, 634500695, 1015201112, 1269001390, 2030402224, 2538002780, 4060804448, 5076005560, 8121608896, 10152011120, 16243217792, 20304022240, 32486435584, 40608044480, 64972871168, 81216088960, 129945742336, 162432177920, 324864355840, 649728711680]

約数ペア:

[(1, 649728711680), (2, 324864355840), (4, 162432177920), (5, 129945742336), (8, 81216088960), (10, 64972871168), (16, 40608044480), (20, 32486435584), (32, 20304022240), (40, 16243217792), (64, 10152011120), (80, 8121608896), (128, 5076005560), (160, 4060804448), (256, 2538002780), (320, 2030402224), (512, 1269001390), (640, 1015201112), (1024, 634500695), (1280, 507600556), (2560, 253800278), (5120, 126900139)]