1980841520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1\times {\mathrm{431}}^1$

素因数の和:763

約数の個数: 160

約数和(自身を含む): 5476792320

約数和(自身を除く): 3495950800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 283, 290, 406, 431, 464, 560, 566, 580, 812, 862, 1015, 1132, 1160, 1415, 1624, 1724, 1981, 2030, 2155, 2264, 2320, 2830, 3017, 3248, 3448, 3962, 4060, 4310, 4528, 5660, 6034, 6896, 7924, 8120, 8207, 8620, 9905, 11320, 12068, 12499, 15085, 15848, 16240, 16414, 17240, 19810, 22640, 24136, 24998, 30170, 31696, 32828, 34480, 39620, 41035, 48272, 49996, 57449, 60340, 62495, 65656, 79240, 82070, 87493, 99992, 114898, 120680, 121973, 124990, 131312, 158480, 164140, 174986, 199984, 229796, 241360, 243946, 249980, 287245, 328280, 349972, 437465, 459592, 487892, 499960, 574490, 609865, 656560, 699944, 853811, 874930, 919184, 975784, 999920, 1148980, 1219730, 1399888, 1707622, 1749860, 1951568, 2297960, 2439460, 3415244, 3499720, 3537217, 4269055, 4595920, 4878920, 6830488, 6999440, 7074434, 8538110, 9757840, 13660976, 14148868, 17076220, 17686085, 24760519, 28297736, 34152440, 35372170, 49521038, 56595472, 68304880, 70744340, 99042076, 123802595, 141488680, 198084152, 247605190, 282977360, 396168304, 495210380, 990420760, 1980841520]

約数ペア:

[(1, 1980841520), (2, 990420760), (4, 495210380), (5, 396168304), (7, 282977360), (8, 247605190), (10, 198084152), (14, 141488680), (16, 123802595), (20, 99042076), (28, 70744340), (29, 68304880), (35, 56595472), (40, 49521038), (56, 35372170), (58, 34152440), (70, 28297736), (80, 24760519), (112, 17686085), (116, 17076220), (140, 14148868), (145, 13660976), (203, 9757840), (232, 8538110), (280, 7074434), (283, 6999440), (290, 6830488), (406, 4878920), (431, 4595920), (464, 4269055), (560, 3537217), (566, 3499720), (580, 3415244), (812, 2439460), (862, 2297960), (1015, 1951568), (1132, 1749860), (1160, 1707622), (1415, 1399888), (1624, 1219730), (1724, 1148980), (1981, 999920), (2030, 975784), (2155, 919184), (2264, 874930), (2320, 853811), (2830, 699944), (3017, 656560), (3248, 609865), (3448, 574490), (3962, 499960), (4060, 487892), (4310, 459592), (4528, 437465), (5660, 349972), (6034, 328280), (6896, 287245), (7924, 249980), (8120, 243946), (8207, 241360), (8620, 229796), (9905, 199984), (11320, 174986), (12068, 164140), (12499, 158480), (15085, 131312), (15848, 124990), (16240, 121973), (16414, 120680), (17240, 114898), (19810, 99992), (22640, 87493), (24136, 82070), (24998, 79240), (30170, 65656), (31696, 62495), (32828, 60340), (34480, 57449), (39620, 49996), (41035, 48272)]