128879640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2539}}^1$

素因数の和:2606

約数の個数: 128

約数和(自身を含む): 438912000

約数和(自身を除く): 310032360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 376, 423, 470, 540, 564, 705, 846, 940, 1080, 1128, 1269, 1410, 1692, 1880, 2115, 2538, 2539, 2820, 3384, 4230, 5076, 5078, 5640, 6345, 7617, 8460, 10152, 10156, 12690, 12695, 15234, 16920, 20312, 22851, 25380, 25390, 30468, 38085, 45702, 50760, 50780, 60936, 68553, 76170, 91404, 101560, 114255, 119333, 137106, 152340, 182808, 228510, 238666, 274212, 304680, 342765, 357999, 457020, 477332, 548424, 596665, 685530, 715998, 914040, 954664, 1073997, 1193330, 1371060, 1431996, 1789995, 2147994, 2386660, 2742120, 2863992, 3221991, 3579990, 4295988, 4773320, 5369985, 6443982, 7159980, 8591976, 10739970, 12887964, 14319960, 16109955, 21479940, 25775928, 32219910, 42959880, 64439820, 128879640]

約数ペア:

[(1, 128879640), (2, 64439820), (3, 42959880), (4, 32219910), (5, 25775928), (6, 21479940), (8, 16109955), (9, 14319960), (10, 12887964), (12, 10739970), (15, 8591976), (18, 7159980), (20, 6443982), (24, 5369985), (27, 4773320), (30, 4295988), (36, 3579990), (40, 3221991), (45, 2863992), (47, 2742120), (54, 2386660), (60, 2147994), (72, 1789995), (90, 1431996), (94, 1371060), (108, 1193330), (120, 1073997), (135, 954664), (141, 914040), (180, 715998), (188, 685530), (216, 596665), (235, 548424), (270, 477332), (282, 457020), (360, 357999), (376, 342765), (423, 304680), (470, 274212), (540, 238666), (564, 228510), (705, 182808), (846, 152340), (940, 137106), (1080, 119333), (1128, 114255), (1269, 101560), (1410, 91404), (1692, 76170), (1880, 68553), (2115, 60936), (2538, 50780), (2539, 50760), (2820, 45702), (3384, 38085), (4230, 30468), (5076, 25390), (5078, 25380), (5640, 22851), (6345, 20312), (7617, 16920), (8460, 15234), (10152, 12695), (10156, 12690)]