1977834720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2179}}^1$

素因数の和:2289

約数の個数: 192

約数和(自身を含む): 6539581440

約数和(自身を除く): 4561746720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 61, 62, 80, 93, 96, 120, 122, 124, 155, 160, 183, 186, 240, 244, 248, 305, 310, 366, 372, 465, 480, 488, 496, 610, 620, 732, 744, 915, 930, 976, 992, 1220, 1240, 1464, 1488, 1830, 1860, 1891, 1952, 2179, 2440, 2480, 2928, 2976, 3660, 3720, 3782, 4358, 4880, 4960, 5673, 5856, 6537, 7320, 7440, 7564, 8716, 9455, 9760, 10895, 11346, 13074, 14640, 14880, 15128, 17432, 18910, 21790, 22692, 26148, 28365, 29280, 30256, 32685, 34864, 37820, 43580, 45384, 52296, 56730, 60512, 65370, 67549, 69728, 75640, 87160, 90768, 104592, 113460, 130740, 132919, 135098, 151280, 174320, 181536, 202647, 209184, 226920, 261480, 265838, 270196, 302560, 337745, 348640, 398757, 405294, 453840, 522960, 531676, 540392, 664595, 675490, 797514, 810588, 907680, 1013235, 1045920, 1063352, 1080784, 1329190, 1350980, 1595028, 1621176, 1993785, 2026470, 2126704, 2161568, 2658380, 2701960, 3190056, 3242352, 3987570, 4052940, 4120489, 4253408, 5316760, 5403920, 6380112, 6484704, 7975140, 8105880, 8240978, 10633520, 10807840, 12361467, 12760224, 15950280, 16211760, 16481956, 20602445, 21267040, 24722934, 31900560, 32423520, 32963912, 41204890, 49445868, 61807335, 63801120, 65927824, 82409780, 98891736, 123614670, 131855648, 164819560, 197783472, 247229340, 329639120, 395566944, 494458680, 659278240, 988917360, 1977834720]

約数ペア:

[(1, 1977834720), (2, 988917360), (3, 659278240), (4, 494458680), (5, 395566944), (6, 329639120), (8, 247229340), (10, 197783472), (12, 164819560), (15, 131855648), (16, 123614670), (20, 98891736), (24, 82409780), (30, 65927824), (31, 63801120), (32, 61807335), (40, 49445868), (48, 41204890), (60, 32963912), (61, 32423520), (62, 31900560), (80, 24722934), (93, 21267040), (96, 20602445), (120, 16481956), (122, 16211760), (124, 15950280), (155, 12760224), (160, 12361467), (183, 10807840), (186, 10633520), (240, 8240978), (244, 8105880), (248, 7975140), (305, 6484704), (310, 6380112), (366, 5403920), (372, 5316760), (465, 4253408), (480, 4120489), (488, 4052940), (496, 3987570), (610, 3242352), (620, 3190056), (732, 2701960), (744, 2658380), (915, 2161568), (930, 2126704), (976, 2026470), (992, 1993785), (1220, 1621176), (1240, 1595028), (1464, 1350980), (1488, 1329190), (1830, 1080784), (1860, 1063352), (1891, 1045920), (1952, 1013235), (2179, 907680), (2440, 810588), (2480, 797514), (2928, 675490), (2976, 664595), (3660, 540392), (3720, 531676), (3782, 522960), (4358, 453840), (4880, 405294), (4960, 398757), (5673, 348640), (5856, 337745), (6537, 302560), (7320, 270196), (7440, 265838), (7564, 261480), (8716, 226920), (9455, 209184), (9760, 202647), (10895, 181536), (11346, 174320), (13074, 151280), (14640, 135098), (14880, 132919), (15128, 130740), (17432, 113460), (18910, 104592), (21790, 90768), (22692, 87160), (26148, 75640), (28365, 69728), (29280, 67549), (30256, 65370), (32685, 60512), (34864, 56730), (37820, 52296), (43580, 45384)]