65881980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{641}}^1$

素因数の和:1227

約数の個数: 72

約数和(自身を含む): 200504304

約数和(自身を除く): 134622324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 571, 641, 1142, 1282, 1713, 1923, 2284, 2564, 2855, 3205, 3426, 3846, 5139, 5710, 5769, 6410, 6852, 7692, 8565, 9615, 10278, 11420, 11538, 12820, 17130, 19230, 20556, 23076, 25695, 28845, 34260, 38460, 51390, 57690, 102780, 115380, 366011, 732022, 1098033, 1464044, 1830055, 2196066, 3294099, 3660110, 4392132, 5490165, 6588198, 7320220, 10980330, 13176396, 16470495, 21960660, 32940990, 65881980]

約数ペア:

[(1, 65881980), (2, 32940990), (3, 21960660), (4, 16470495), (5, 13176396), (6, 10980330), (9, 7320220), (10, 6588198), (12, 5490165), (15, 4392132), (18, 3660110), (20, 3294099), (30, 2196066), (36, 1830055), (45, 1464044), (60, 1098033), (90, 732022), (180, 366011), (571, 115380), (641, 102780), (1142, 57690), (1282, 51390), (1713, 38460), (1923, 34260), (2284, 28845), (2564, 25695), (2855, 23076), (3205, 20556), (3426, 19230), (3846, 17130), (5139, 12820), (5710, 11538), (5769, 11420), (6410, 10278), (6852, 9615), (7692, 8565)]