281275680

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{11959}}^1$

素因数の和:11991

約数の個数: 144

約数和(自身を含む): 1030760640

約数和(自身を除く): 749484960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 11760, 11959, 23520, 23918, 35877, 47836, 59795, 71754, 83713, 95672, 119590, 143508, 167426, 179385, 191344, 239180, 251139, 287016, 334852, 358770, 382688, 418565, 478360, 502278, 574032, 585991, 669704, 717540, 837130, 956720, 1004556, 1148064, 1171982, 1255695, 1339408, 1435080, 1674260, 1757973, 1913440, 2009112, 2343964, 2511390, 2678816, 2870160, 2929955, 3348520, 3515946, 4018224, 4687928, 5022780, 5740320, 5859910, 6697040, 7031892, 8036448, 8789865, 9375856, 10045560, 11719820, 13394080, 14063784, 17579730, 18751712, 20091120, 23439640, 28127568, 35159460, 40182240, 46879280, 56255136, 70318920, 93758560, 140637840, 281275680]

約数ペア:

[(1, 281275680), (2, 140637840), (3, 93758560), (4, 70318920), (5, 56255136), (6, 46879280), (7, 40182240), (8, 35159460), (10, 28127568), (12, 23439640), (14, 20091120), (15, 18751712), (16, 17579730), (20, 14063784), (21, 13394080), (24, 11719820), (28, 10045560), (30, 9375856), (32, 8789865), (35, 8036448), (40, 7031892), (42, 6697040), (48, 5859910), (49, 5740320), (56, 5022780), (60, 4687928), (70, 4018224), (80, 3515946), (84, 3348520), (96, 2929955), (98, 2870160), (105, 2678816), (112, 2511390), (120, 2343964), (140, 2009112), (147, 1913440), (160, 1757973), (168, 1674260), (196, 1435080), (210, 1339408), (224, 1255695), (240, 1171982), (245, 1148064), (280, 1004556), (294, 956720), (336, 837130), (392, 717540), (420, 669704), (480, 585991), (490, 574032), (560, 502278), (588, 478360), (672, 418565), (735, 382688), (784, 358770), (840, 334852), (980, 287016), (1120, 251139), (1176, 239180), (1470, 191344), (1568, 179385), (1680, 167426), (1960, 143508), (2352, 119590), (2940, 95672), (3360, 83713), (3920, 71754), (4704, 59795), (5880, 47836), (7840, 35877), (11760, 23918), (11959, 23520)]