257218920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{102071}}^1$

素因数の和:102095

約数の個数: 96

約数和(自身を含む): 955393920

約数和(自身を除く): 698175000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 102071, 204142, 306213, 408284, 510355, 612426, 714497, 816568, 918639, 1020710, 1224852, 1428994, 1531065, 1837278, 2041420, 2143491, 2449704, 2857988, 3062130, 3572485, 3674556, 4082840, 4286982, 4593195, 5715976, 6124260, 6430473, 7144970, 7349112, 8573964, 9186390, 10717455, 12248520, 12860946, 14289940, 17147928, 18372780, 21434910, 25721892, 28579880, 32152365, 36745560, 42869820, 51443784, 64304730, 85739640, 128609460, 257218920]

約数ペア:

[(1, 257218920), (2, 128609460), (3, 85739640), (4, 64304730), (5, 51443784), (6, 42869820), (7, 36745560), (8, 32152365), (9, 28579880), (10, 25721892), (12, 21434910), (14, 18372780), (15, 17147928), (18, 14289940), (20, 12860946), (21, 12248520), (24, 10717455), (28, 9186390), (30, 8573964), (35, 7349112), (36, 7144970), (40, 6430473), (42, 6124260), (45, 5715976), (56, 4593195), (60, 4286982), (63, 4082840), (70, 3674556), (72, 3572485), (84, 3062130), (90, 2857988), (105, 2449704), (120, 2143491), (126, 2041420), (140, 1837278), (168, 1531065), (180, 1428994), (210, 1224852), (252, 1020710), (280, 918639), (315, 816568), (360, 714497), (420, 612426), (504, 510355), (630, 408284), (840, 306213), (1260, 204142), (2520, 102071)]