257228160

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{19139}}^1$

素因数の和:19168

約数の個数: 128

約数和(自身を含む): 937094400

約数和(自身を除く): 679866240

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, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 19139, 38278, 57417, 76556, 95695, 114834, 133973, 153112, 191390, 229668, 267946, 287085, 306224, 382780, 401919, 459336, 535892, 574170, 612448, 669865, 765560, 803838, 918672, 1071784, 1148340, 1224896, 1339730, 1531120, 1607676, 1837344, 2009595, 2143568, 2296680, 2449792, 2679460, 3062240, 3215352, 3674688, 4019190, 4287136, 4593360, 5358920, 6124480, 6430704, 7349376, 8038380, 8574272, 9186720, 10717840, 12248960, 12861408, 16076760, 17148544, 18373440, 21435680, 25722816, 32153520, 36746880, 42871360, 51445632, 64307040, 85742720, 128614080, 257228160]

約数ペア:

[(1, 257228160), (2, 128614080), (3, 85742720), (4, 64307040), (5, 51445632), (6, 42871360), (7, 36746880), (8, 32153520), (10, 25722816), (12, 21435680), (14, 18373440), (15, 17148544), (16, 16076760), (20, 12861408), (21, 12248960), (24, 10717840), (28, 9186720), (30, 8574272), (32, 8038380), (35, 7349376), (40, 6430704), (42, 6124480), (48, 5358920), (56, 4593360), (60, 4287136), (64, 4019190), (70, 3674688), (80, 3215352), (84, 3062240), (96, 2679460), (105, 2449792), (112, 2296680), (120, 2143568), (128, 2009595), (140, 1837344), (160, 1607676), (168, 1531120), (192, 1339730), (210, 1224896), (224, 1148340), (240, 1071784), (280, 918672), (320, 803838), (336, 765560), (384, 669865), (420, 612448), (448, 574170), (480, 535892), (560, 459336), (640, 401919), (672, 382780), (840, 306224), (896, 287085), (960, 267946), (1120, 229668), (1344, 191390), (1680, 153112), (1920, 133973), (2240, 114834), (2688, 95695), (3360, 76556), (4480, 57417), (6720, 38278), (13440, 19139)]