16981440

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^2$

素因数の和:72

約数の個数: 252

約数和(自身を含む): 66193416

約数和(自身を除く): 49211976

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 49, 56, 57, 60, 64, 70, 76, 80, 84, 95, 96, 98, 105, 112, 114, 120, 133, 140, 147, 152, 160, 168, 190, 192, 196, 210, 224, 228, 240, 245, 266, 280, 285, 294, 304, 320, 336, 361, 380, 392, 399, 420, 448, 456, 480, 490, 532, 560, 570, 588, 608, 665, 672, 722, 735, 760, 784, 798, 840, 912, 931, 960, 980, 1064, 1083, 1120, 1140, 1176, 1216, 1330, 1344, 1444, 1470, 1520, 1568, 1596, 1680, 1805, 1824, 1862, 1960, 1995, 2128, 2166, 2240, 2280, 2352, 2527, 2660, 2793, 2888, 2940, 3040, 3136, 3192, 3360, 3610, 3648, 3724, 3920, 3990, 4256, 4332, 4560, 4655, 4704, 5054, 5320, 5415, 5586, 5776, 5880, 6080, 6384, 6720, 7220, 7448, 7581, 7840, 7980, 8512, 8664, 9120, 9310, 9408, 10108, 10640, 10830, 11172, 11552, 11760, 12635, 12768, 13965, 14440, 14896, 15162, 15680, 15960, 17328, 17689, 18240, 18620, 20216, 21280, 21660, 22344, 23104, 23520, 25270, 25536, 27930, 28880, 29792, 30324, 31920, 34656, 35378, 37240, 37905, 40432, 42560, 43320, 44688, 47040, 50540, 53067, 55860, 57760, 59584, 60648, 63840, 69312, 70756, 74480, 75810, 80864, 86640, 88445, 89376, 101080, 106134, 111720, 115520, 121296, 127680, 141512, 148960, 151620, 161728, 173280, 176890, 178752, 202160, 212268, 223440, 242592, 265335, 283024, 297920, 303240, 346560, 353780, 404320, 424536, 446880, 485184, 530670, 566048, 606480, 707560, 808640, 849072, 893760, 1061340, 1132096, 1212960, 1415120, 1698144, 2122680, 2425920, 2830240, 3396288, 4245360, 5660480, 8490720, 16981440]

約数ペア:

[(1, 16981440), (2, 8490720), (3, 5660480), (4, 4245360), (5, 3396288), (6, 2830240), (7, 2425920), (8, 2122680), (10, 1698144), (12, 1415120), (14, 1212960), (15, 1132096), (16, 1061340), (19, 893760), (20, 849072), (21, 808640), (24, 707560), (28, 606480), (30, 566048), (32, 530670), (35, 485184), (38, 446880), (40, 424536), (42, 404320), (48, 353780), (49, 346560), (56, 303240), (57, 297920), (60, 283024), (64, 265335), (70, 242592), (76, 223440), (80, 212268), (84, 202160), (95, 178752), (96, 176890), (98, 173280), (105, 161728), (112, 151620), (114, 148960), (120, 141512), (133, 127680), (140, 121296), (147, 115520), (152, 111720), (160, 106134), (168, 101080), (190, 89376), (192, 88445), (196, 86640), (210, 80864), (224, 75810), (228, 74480), (240, 70756), (245, 69312), (266, 63840), (280, 60648), (285, 59584), (294, 57760), (304, 55860), (320, 53067), (336, 50540), (361, 47040), (380, 44688), (392, 43320), (399, 42560), (420, 40432), (448, 37905), (456, 37240), (480, 35378), (490, 34656), (532, 31920), (560, 30324), (570, 29792), (588, 28880), (608, 27930), (665, 25536), (672, 25270), (722, 23520), (735, 23104), (760, 22344), (784, 21660), (798, 21280), (840, 20216), (912, 18620), (931, 18240), (960, 17689), (980, 17328), (1064, 15960), (1083, 15680), (1120, 15162), (1140, 14896), (1176, 14440), (1216, 13965), (1330, 12768), (1344, 12635), (1444, 11760), (1470, 11552), (1520, 11172), (1568, 10830), (1596, 10640), (1680, 10108), (1805, 9408), (1824, 9310), (1862, 9120), (1960, 8664), (1995, 8512), (2128, 7980), (2166, 7840), (2240, 7581), (2280, 7448), (2352, 7220), (2527, 6720), (2660, 6384), (2793, 6080), (2888, 5880), (2940, 5776), (3040, 5586), (3136, 5415), (3192, 5320), (3360, 5054), (3610, 4704), (3648, 4655), (3724, 4560), (3920, 4332), (3990, 4256)]