820121520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{3417173}}^1$

素因数の和:3417189

約数の個数: 40

約数和(自身を含む): 2542377456

約数和(自身を除く): 1722255936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 3417173, 6834346, 10251519, 13668692, 17085865, 20503038, 27337384, 34171730, 41006076, 51257595, 54674768, 68343460, 82012152, 102515190, 136686920, 164024304, 205030380, 273373840, 410060760, 820121520]

約数ペア:

[(1, 820121520), (2, 410060760), (3, 273373840), (4, 205030380), (5, 164024304), (6, 136686920), (8, 102515190), (10, 82012152), (12, 68343460), (15, 54674768), (16, 51257595), (20, 41006076), (24, 34171730), (30, 27337384), (40, 20503038), (48, 17085865), (60, 13668692), (80, 10251519), (120, 6834346), (240, 3417173)]