18986760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4057}}^1$

素因数の和:4087

約数の個数: 96

約数和(自身を含む): 66470040

約数和(自身を除く): 47483280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4057, 4680, 8114, 12171, 16228, 20285, 24342, 32456, 36513, 40570, 48684, 52741, 60855, 73026, 81140, 97368, 105482, 121710, 146052, 158223, 162280, 182565, 210964, 243420, 263705, 292104, 316446, 365130, 421928, 474669, 486840, 527410, 632892, 730260, 791115, 949338, 1054820, 1265784, 1460520, 1582230, 1898676, 2109640, 2373345, 3164460, 3797352, 4746690, 6328920, 9493380, 18986760]

約数ペア:

[(1, 18986760), (2, 9493380), (3, 6328920), (4, 4746690), (5, 3797352), (6, 3164460), (8, 2373345), (9, 2109640), (10, 1898676), (12, 1582230), (13, 1460520), (15, 1265784), (18, 1054820), (20, 949338), (24, 791115), (26, 730260), (30, 632892), (36, 527410), (39, 486840), (40, 474669), (45, 421928), (52, 365130), (60, 316446), (65, 292104), (72, 263705), (78, 243420), (90, 210964), (104, 182565), (117, 162280), (120, 158223), (130, 146052), (156, 121710), (180, 105482), (195, 97368), (234, 81140), (260, 73026), (312, 60855), (360, 52741), (390, 48684), (468, 40570), (520, 36513), (585, 32456), (780, 24342), (936, 20285), (1170, 16228), (1560, 12171), (2340, 8114), (4057, 4680)]