19994580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{607}}^1$

素因数の和:686

約数の個数: 96

約数和(自身を含む): 63329280

約数和(自身を除く): 43334700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 90, 108, 122, 135, 180, 183, 244, 270, 305, 366, 540, 549, 607, 610, 732, 915, 1098, 1214, 1220, 1647, 1821, 1830, 2196, 2428, 2745, 3035, 3294, 3642, 3660, 5463, 5490, 6070, 6588, 7284, 8235, 9105, 10926, 10980, 12140, 16389, 16470, 18210, 21852, 27315, 32778, 32940, 36420, 37027, 54630, 65556, 74054, 81945, 109260, 111081, 148108, 163890, 185135, 222162, 327780, 333243, 370270, 444324, 555405, 666486, 740540, 999729, 1110810, 1332972, 1666215, 1999458, 2221620, 3332430, 3998916, 4998645, 6664860, 9997290, 19994580]

約数ペア:

[(1, 19994580), (2, 9997290), (3, 6664860), (4, 4998645), (5, 3998916), (6, 3332430), (9, 2221620), (10, 1999458), (12, 1666215), (15, 1332972), (18, 1110810), (20, 999729), (27, 740540), (30, 666486), (36, 555405), (45, 444324), (54, 370270), (60, 333243), (61, 327780), (90, 222162), (108, 185135), (122, 163890), (135, 148108), (180, 111081), (183, 109260), (244, 81945), (270, 74054), (305, 65556), (366, 54630), (540, 37027), (549, 36420), (607, 32940), (610, 32778), (732, 27315), (915, 21852), (1098, 18210), (1214, 16470), (1220, 16389), (1647, 12140), (1821, 10980), (1830, 10926), (2196, 9105), (2428, 8235), (2745, 7284), (3035, 6588), (3294, 6070), (3642, 5490), (3660, 5463)]