18964920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12157}}^1$

素因数の和:12184

約数の個数: 64

約数和(自身を含む): 61276320

約数和(自身を除く): 42311400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12157, 24314, 36471, 48628, 60785, 72942, 97256, 121570, 145884, 158041, 182355, 243140, 291768, 316082, 364710, 474123, 486280, 632164, 729420, 790205, 948246, 1264328, 1458840, 1580410, 1896492, 2370615, 3160820, 3792984, 4741230, 6321640, 9482460, 18964920]

約数ペア:

[(1, 18964920), (2, 9482460), (3, 6321640), (4, 4741230), (5, 3792984), (6, 3160820), (8, 2370615), (10, 1896492), (12, 1580410), (13, 1458840), (15, 1264328), (20, 948246), (24, 790205), (26, 729420), (30, 632164), (39, 486280), (40, 474123), (52, 364710), (60, 316082), (65, 291768), (78, 243140), (104, 182355), (120, 158041), (130, 145884), (156, 121570), (195, 97256), (260, 72942), (312, 60785), (390, 48628), (520, 36471), (780, 24314), (1560, 12157)]