81989460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{65071}}^1$

素因数の和:65093

約数の個数: 72

約数和(自身を含む): 284234496

約数和(自身を除く): 202245036

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 65071, 130142, 195213, 260284, 325355, 390426, 455497, 585639, 650710, 780852, 910994, 976065, 1171278, 1301420, 1366491, 1821988, 1952130, 2277485, 2342556, 2732982, 2928195, 3904260, 4099473, 4554970, 5465964, 5856390, 6832455, 8198946, 9109940, 11712780, 13664910, 16397892, 20497365, 27329820, 40994730, 81989460]

約数ペア:

[(1, 81989460), (2, 40994730), (3, 27329820), (4, 20497365), (5, 16397892), (6, 13664910), (7, 11712780), (9, 9109940), (10, 8198946), (12, 6832455), (14, 5856390), (15, 5465964), (18, 4554970), (20, 4099473), (21, 3904260), (28, 2928195), (30, 2732982), (35, 2342556), (36, 2277485), (42, 1952130), (45, 1821988), (60, 1366491), (63, 1301420), (70, 1171278), (84, 976065), (90, 910994), (105, 780852), (126, 650710), (140, 585639), (180, 455497), (210, 390426), (252, 325355), (315, 260284), (420, 195213), (630, 130142), (1260, 65071)]