19959720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15121}}^1$

素因数の和:15146

約数の個数: 64

約数和(自身を含む): 65327040

約数和(自身を除く): 45367320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15121, 30242, 45363, 60484, 75605, 90726, 120968, 151210, 166331, 181452, 226815, 302420, 332662, 362904, 453630, 498993, 604840, 665324, 831655, 907260, 997986, 1330648, 1663310, 1814520, 1995972, 2494965, 3326620, 3991944, 4989930, 6653240, 9979860, 19959720]

約数ペア:

[(1, 19959720), (2, 9979860), (3, 6653240), (4, 4989930), (5, 3991944), (6, 3326620), (8, 2494965), (10, 1995972), (11, 1814520), (12, 1663310), (15, 1330648), (20, 997986), (22, 907260), (24, 831655), (30, 665324), (33, 604840), (40, 498993), (44, 453630), (55, 362904), (60, 332662), (66, 302420), (88, 226815), (110, 181452), (120, 166331), (132, 151210), (165, 120968), (220, 90726), (264, 75605), (330, 60484), (440, 45363), (660, 30242), (1320, 15121)]