20437560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:438

約数の個数: 192

約数和(自身を含む): 78230880

約数和(自身を除く): 57793320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 18, 20, 22, 24, 26, 30, 33, 36, 39, 40, 44, 45, 52, 55, 60, 65, 66, 72, 78, 88, 90, 99, 104, 110, 117, 120, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 264, 286, 312, 330, 360, 390, 396, 397, 429, 440, 468, 495, 520, 572, 585, 660, 715, 780, 792, 794, 858, 936, 990, 1144, 1170, 1191, 1287, 1320, 1430, 1560, 1588, 1716, 1980, 1985, 2145, 2340, 2382, 2574, 2860, 3176, 3432, 3573, 3960, 3970, 4290, 4367, 4680, 4764, 5148, 5161, 5720, 5955, 6435, 7146, 7940, 8580, 8734, 9528, 10296, 10322, 11910, 12870, 13101, 14292, 15483, 15880, 17160, 17468, 17865, 20644, 21835, 23820, 25740, 25805, 26202, 28584, 30966, 34936, 35730, 39303, 41288, 43670, 46449, 47640, 51480, 51610, 52404, 56771, 61932, 65505, 71460, 77415, 78606, 87340, 92898, 103220, 104808, 113542, 123864, 131010, 142920, 154830, 157212, 170313, 174680, 185796, 196515, 206440, 227084, 232245, 262020, 283855, 309660, 314424, 340626, 371592, 393030, 454168, 464490, 510939, 524040, 567710, 619320, 681252, 786060, 851565, 928980, 1021878, 1135420, 1362504, 1572120, 1703130, 1857960, 2043756, 2270840, 2554695, 3406260, 4087512, 5109390, 6812520, 10218780, 20437560]

約数ペア:

[(1, 20437560), (2, 10218780), (3, 6812520), (4, 5109390), (5, 4087512), (6, 3406260), (8, 2554695), (9, 2270840), (10, 2043756), (11, 1857960), (12, 1703130), (13, 1572120), (15, 1362504), (18, 1135420), (20, 1021878), (22, 928980), (24, 851565), (26, 786060), (30, 681252), (33, 619320), (36, 567710), (39, 524040), (40, 510939), (44, 464490), (45, 454168), (52, 393030), (55, 371592), (60, 340626), (65, 314424), (66, 309660), (72, 283855), (78, 262020), (88, 232245), (90, 227084), (99, 206440), (104, 196515), (110, 185796), (117, 174680), (120, 170313), (130, 157212), (132, 154830), (143, 142920), (156, 131010), (165, 123864), (180, 113542), (195, 104808), (198, 103220), (220, 92898), (234, 87340), (260, 78606), (264, 77415), (286, 71460), (312, 65505), (330, 61932), (360, 56771), (390, 52404), (396, 51610), (397, 51480), (429, 47640), (440, 46449), (468, 43670), (495, 41288), (520, 39303), (572, 35730), (585, 34936), (660, 30966), (715, 28584), (780, 26202), (792, 25805), (794, 25740), (858, 23820), (936, 21835), (990, 20644), (1144, 17865), (1170, 17468), (1191, 17160), (1287, 15880), (1320, 15483), (1430, 14292), (1560, 13101), (1588, 12870), (1716, 11910), (1980, 10322), (1985, 10296), (2145, 9528), (2340, 8734), (2382, 8580), (2574, 7940), (2860, 7146), (3176, 6435), (3432, 5955), (3573, 5720), (3960, 5161), (3970, 5148), (4290, 4764), (4367, 4680)]