19250990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 40711680

約数和(自身を除く): 21460690

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 61, 95, 110, 122, 151, 190, 209, 302, 305, 418, 610, 671, 755, 1045, 1159, 1342, 1510, 1661, 2090, 2318, 2869, 3322, 3355, 5738, 5795, 6710, 8305, 9211, 11590, 12749, 14345, 16610, 18422, 25498, 28690, 31559, 46055, 63118, 63745, 92110, 101321, 127490, 157795, 175009, 202642, 315590, 350018, 506605, 875045, 1013210, 1750090, 1925099, 3850198, 9625495, 19250990]

約数ペア:

[(1, 19250990), (2, 9625495), (5, 3850198), (10, 1925099), (11, 1750090), (19, 1013210), (22, 875045), (38, 506605), (55, 350018), (61, 315590), (95, 202642), (110, 175009), (122, 157795), (151, 127490), (190, 101321), (209, 92110), (302, 63745), (305, 63118), (418, 46055), (610, 31559), (671, 28690), (755, 25498), (1045, 18422), (1159, 16610), (1342, 14345), (1510, 12749), (1661, 11590), (2090, 9211), (2318, 8305), (2869, 6710), (3322, 5795), (3355, 5738)]