320121040

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{1303}}^1$

素因数の和:1436

約数の個数: 80

約数和(自身を含む): 774200448

約数和(自身を除く): 454079408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 83, 148, 166, 185, 296, 332, 370, 415, 592, 664, 740, 830, 1303, 1328, 1480, 1660, 2606, 2960, 3071, 3320, 5212, 6142, 6515, 6640, 10424, 12284, 13030, 15355, 20848, 24568, 26060, 30710, 48211, 49136, 52120, 61420, 96422, 104240, 108149, 122840, 192844, 216298, 241055, 245680, 385688, 432596, 482110, 540745, 771376, 865192, 964220, 1081490, 1730384, 1928440, 2162980, 3856880, 4001513, 4325960, 8003026, 8651920, 16006052, 20007565, 32012104, 40015130, 64024208, 80030260, 160060520, 320121040]

約数ペア:

[(1, 320121040), (2, 160060520), (4, 80030260), (5, 64024208), (8, 40015130), (10, 32012104), (16, 20007565), (20, 16006052), (37, 8651920), (40, 8003026), (74, 4325960), (80, 4001513), (83, 3856880), (148, 2162980), (166, 1928440), (185, 1730384), (296, 1081490), (332, 964220), (370, 865192), (415, 771376), (592, 540745), (664, 482110), (740, 432596), (830, 385688), (1303, 245680), (1328, 241055), (1480, 216298), (1660, 192844), (2606, 122840), (2960, 108149), (3071, 104240), (3320, 96422), (5212, 61420), (6142, 52120), (6515, 49136), (6640, 48211), (10424, 30710), (12284, 26060), (13030, 24568), (15355, 20848)]