19865560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:209

約数の個数: 128

約数和(自身を含む): 55157760

約数和(自身を除く): 35292200

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 23, 26, 40, 44, 46, 52, 55, 65, 88, 92, 104, 110, 115, 130, 143, 151, 184, 220, 230, 253, 260, 286, 299, 302, 440, 460, 506, 520, 572, 598, 604, 715, 755, 920, 1012, 1144, 1196, 1208, 1265, 1430, 1495, 1510, 1661, 1963, 2024, 2392, 2530, 2860, 2990, 3020, 3289, 3322, 3473, 3926, 5060, 5720, 5980, 6040, 6578, 6644, 6946, 7852, 8305, 9815, 10120, 11960, 13156, 13288, 13892, 15704, 16445, 16610, 17365, 19630, 21593, 26312, 27784, 32890, 33220, 34730, 38203, 39260, 43186, 45149, 65780, 66440, 69460, 76406, 78520, 86372, 90298, 107965, 131560, 138920, 152812, 172744, 180596, 191015, 215930, 225745, 305624, 361192, 382030, 431860, 451490, 496639, 764060, 863720, 902980, 993278, 1528120, 1805960, 1986556, 2483195, 3973112, 4966390, 9932780, 19865560]

約数ペア:

[(1, 19865560), (2, 9932780), (4, 4966390), (5, 3973112), (8, 2483195), (10, 1986556), (11, 1805960), (13, 1528120), (20, 993278), (22, 902980), (23, 863720), (26, 764060), (40, 496639), (44, 451490), (46, 431860), (52, 382030), (55, 361192), (65, 305624), (88, 225745), (92, 215930), (104, 191015), (110, 180596), (115, 172744), (130, 152812), (143, 138920), (151, 131560), (184, 107965), (220, 90298), (230, 86372), (253, 78520), (260, 76406), (286, 69460), (299, 66440), (302, 65780), (440, 45149), (460, 43186), (506, 39260), (520, 38203), (572, 34730), (598, 33220), (604, 32890), (715, 27784), (755, 26312), (920, 21593), (1012, 19630), (1144, 17365), (1196, 16610), (1208, 16445), (1265, 15704), (1430, 13892), (1495, 13288), (1510, 13156), (1661, 11960), (1963, 10120), (2024, 9815), (2392, 8305), (2530, 7852), (2860, 6946), (2990, 6644), (3020, 6578), (3289, 6040), (3322, 5980), (3473, 5720), (3926, 5060)]