20591760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:150

約数の個数: 240

約数和(自身を含む): 79387776

約数和(自身を除く): 58796016

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 48, 49, 51, 56, 60, 68, 70, 80, 84, 85, 98, 102, 103, 105, 112, 119, 120, 136, 140, 147, 168, 170, 196, 204, 206, 210, 238, 240, 245, 255, 272, 280, 294, 309, 336, 340, 357, 392, 408, 412, 420, 476, 490, 510, 515, 560, 588, 595, 618, 680, 714, 721, 735, 784, 816, 824, 833, 840, 952, 980, 1020, 1030, 1176, 1190, 1236, 1360, 1428, 1442, 1470, 1545, 1648, 1666, 1680, 1751, 1785, 1904, 1960, 2040, 2060, 2163, 2352, 2380, 2472, 2499, 2856, 2884, 2940, 3090, 3332, 3502, 3570, 3605, 3920, 4080, 4120, 4165, 4326, 4760, 4944, 4998, 5047, 5253, 5712, 5768, 5880, 6180, 6664, 7004, 7140, 7210, 8240, 8330, 8652, 8755, 9520, 9996, 10094, 10506, 10815, 11536, 11760, 12257, 12360, 12495, 13328, 14008, 14280, 14420, 15141, 16660, 17304, 17510, 19992, 20188, 21012, 21630, 24514, 24720, 24990, 25235, 26265, 28016, 28560, 28840, 30282, 33320, 34608, 35020, 36771, 39984, 40376, 42024, 43260, 49028, 49980, 50470, 52530, 57680, 60564, 61285, 66640, 70040, 73542, 75705, 80752, 84048, 85799, 86520, 98056, 99960, 100940, 105060, 121128, 122570, 140080, 147084, 151410, 171598, 173040, 183855, 196112, 199920, 201880, 210120, 242256, 245140, 257397, 294168, 302820, 343196, 367710, 403760, 420240, 428995, 490280, 514794, 588336, 605640, 686392, 735420, 857990, 980560, 1029588, 1211280, 1286985, 1372784, 1470840, 1715980, 2059176, 2573970, 2941680, 3431960, 4118352, 5147940, 6863920, 10295880, 20591760]

約数ペア:

[(1, 20591760), (2, 10295880), (3, 6863920), (4, 5147940), (5, 4118352), (6, 3431960), (7, 2941680), (8, 2573970), (10, 2059176), (12, 1715980), (14, 1470840), (15, 1372784), (16, 1286985), (17, 1211280), (20, 1029588), (21, 980560), (24, 857990), (28, 735420), (30, 686392), (34, 605640), (35, 588336), (40, 514794), (42, 490280), (48, 428995), (49, 420240), (51, 403760), (56, 367710), (60, 343196), (68, 302820), (70, 294168), (80, 257397), (84, 245140), (85, 242256), (98, 210120), (102, 201880), (103, 199920), (105, 196112), (112, 183855), (119, 173040), (120, 171598), (136, 151410), (140, 147084), (147, 140080), (168, 122570), (170, 121128), (196, 105060), (204, 100940), (206, 99960), (210, 98056), (238, 86520), (240, 85799), (245, 84048), (255, 80752), (272, 75705), (280, 73542), (294, 70040), (309, 66640), (336, 61285), (340, 60564), (357, 57680), (392, 52530), (408, 50470), (412, 49980), (420, 49028), (476, 43260), (490, 42024), (510, 40376), (515, 39984), (560, 36771), (588, 35020), (595, 34608), (618, 33320), (680, 30282), (714, 28840), (721, 28560), (735, 28016), (784, 26265), (816, 25235), (824, 24990), (833, 24720), (840, 24514), (952, 21630), (980, 21012), (1020, 20188), (1030, 19992), (1176, 17510), (1190, 17304), (1236, 16660), (1360, 15141), (1428, 14420), (1442, 14280), (1470, 14008), (1545, 13328), (1648, 12495), (1666, 12360), (1680, 12257), (1751, 11760), (1785, 11536), (1904, 10815), (1960, 10506), (2040, 10094), (2060, 9996), (2163, 9520), (2352, 8755), (2380, 8652), (2472, 8330), (2499, 8240), (2856, 7210), (2884, 7140), (2940, 7004), (3090, 6664), (3332, 6180), (3502, 5880), (3570, 5768), (3605, 5712), (3920, 5253), (4080, 5047), (4120, 4998), (4165, 4944), (4326, 4760)]