28700280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{1627}}^1$

素因数の和:1658

約数の個数: 144

約数和(自身を含む): 108571320

約数和(自身を除く): 79871040

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, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1260, 1470, 1627, 1764, 1960, 2205, 2520, 2940, 3254, 3528, 4410, 4881, 5880, 6508, 8135, 8820, 9762, 11389, 13016, 14643, 16270, 17640, 19524, 22778, 24405, 29286, 32540, 34167, 39048, 45556, 48810, 56945, 58572, 65080, 68334, 73215, 79723, 91112, 97620, 102501, 113890, 117144, 136668, 146430, 159446, 170835, 195240, 205002, 227780, 239169, 273336, 292860, 318892, 341670, 398615, 410004, 455560, 478338, 512505, 585720, 637784, 683340, 717507, 797230, 820008, 956676, 1025010, 1195845, 1366680, 1435014, 1594460, 1913352, 2050020, 2391690, 2870028, 3188920, 3587535, 4100040, 4783380, 5740056, 7175070, 9566760, 14350140, 28700280]

約数ペア:

[(1, 28700280), (2, 14350140), (3, 9566760), (4, 7175070), (5, 5740056), (6, 4783380), (7, 4100040), (8, 3587535), (9, 3188920), (10, 2870028), (12, 2391690), (14, 2050020), (15, 1913352), (18, 1594460), (20, 1435014), (21, 1366680), (24, 1195845), (28, 1025010), (30, 956676), (35, 820008), (36, 797230), (40, 717507), (42, 683340), (45, 637784), (49, 585720), (56, 512505), (60, 478338), (63, 455560), (70, 410004), (72, 398615), (84, 341670), (90, 318892), (98, 292860), (105, 273336), (120, 239169), (126, 227780), (140, 205002), (147, 195240), (168, 170835), (180, 159446), (196, 146430), (210, 136668), (245, 117144), (252, 113890), (280, 102501), (294, 97620), (315, 91112), (360, 79723), (392, 73215), (420, 68334), (441, 65080), (490, 58572), (504, 56945), (588, 48810), (630, 45556), (735, 39048), (840, 34167), (882, 32540), (980, 29286), (1176, 24405), (1260, 22778), (1470, 19524), (1627, 17640), (1764, 16270), (1960, 14643), (2205, 13016), (2520, 11389), (2940, 9762), (3254, 8820), (3528, 8135), (4410, 6508), (4881, 5880)]