319760520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{20341}}^1$

素因数の和:20486

約数の個数: 64

約数和(自身を含む): 966651840

約数和(自身を除く): 646891320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2620, 3144, 3930, 5240, 7860, 15720, 20341, 40682, 61023, 81364, 101705, 122046, 162728, 203410, 244092, 305115, 406820, 488184, 610230, 813640, 1220460, 2440920, 2664671, 5329342, 7994013, 10658684, 13323355, 15988026, 21317368, 26646710, 31976052, 39970065, 53293420, 63952104, 79940130, 106586840, 159880260, 319760520]

約数ペア:

[(1, 319760520), (2, 159880260), (3, 106586840), (4, 79940130), (5, 63952104), (6, 53293420), (8, 39970065), (10, 31976052), (12, 26646710), (15, 21317368), (20, 15988026), (24, 13323355), (30, 10658684), (40, 7994013), (60, 5329342), (120, 2664671), (131, 2440920), (262, 1220460), (393, 813640), (524, 610230), (655, 488184), (786, 406820), (1048, 305115), (1310, 244092), (1572, 203410), (1965, 162728), (2620, 122046), (3144, 101705), (3930, 81364), (5240, 61023), (7860, 40682), (15720, 20341)]