29971980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{619}}^1$

素因数の和:903

約数の個数: 72

約数和(自身を含む): 91400400

約数和(自身を除く): 61428420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 269, 538, 619, 807, 1076, 1238, 1345, 1614, 1857, 2421, 2476, 2690, 3095, 3228, 3714, 4035, 4842, 5380, 5571, 6190, 7428, 8070, 9285, 9684, 11142, 12105, 12380, 16140, 18570, 22284, 24210, 27855, 37140, 48420, 55710, 111420, 166511, 333022, 499533, 666044, 832555, 999066, 1498599, 1665110, 1998132, 2497665, 2997198, 3330220, 4995330, 5994396, 7492995, 9990660, 14985990, 29971980]

約数ペア:

[(1, 29971980), (2, 14985990), (3, 9990660), (4, 7492995), (5, 5994396), (6, 4995330), (9, 3330220), (10, 2997198), (12, 2497665), (15, 1998132), (18, 1665110), (20, 1498599), (30, 999066), (36, 832555), (45, 666044), (60, 499533), (90, 333022), (180, 166511), (269, 111420), (538, 55710), (619, 48420), (807, 37140), (1076, 27855), (1238, 24210), (1345, 22284), (1614, 18570), (1857, 16140), (2421, 12380), (2476, 12105), (2690, 11142), (3095, 9684), (3228, 9285), (3714, 8070), (4035, 7428), (4842, 6190), (5380, 5571)]