20452080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:215

約数の個数: 160

約数和(自身を含む): 70852608

約数和(自身を除く): 50400528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 61, 66, 80, 88, 110, 120, 122, 127, 132, 165, 176, 183, 220, 240, 244, 254, 264, 305, 330, 366, 381, 440, 488, 508, 528, 610, 635, 660, 671, 732, 762, 880, 915, 976, 1016, 1220, 1270, 1320, 1342, 1397, 1464, 1524, 1830, 1905, 2013, 2032, 2440, 2540, 2640, 2684, 2794, 2928, 3048, 3355, 3660, 3810, 4026, 4191, 4880, 5080, 5368, 5588, 6096, 6710, 6985, 7320, 7620, 7747, 8052, 8382, 10065, 10160, 10736, 11176, 13420, 13970, 14640, 15240, 15494, 16104, 16764, 20130, 20955, 22352, 23241, 26840, 27940, 30480, 30988, 32208, 33528, 38735, 40260, 41910, 46482, 53680, 55880, 61976, 67056, 77470, 80520, 83820, 85217, 92964, 111760, 116205, 123952, 154940, 161040, 167640, 170434, 185928, 232410, 255651, 309880, 335280, 340868, 371856, 426085, 464820, 511302, 619760, 681736, 852170, 929640, 1022604, 1278255, 1363472, 1704340, 1859280, 2045208, 2556510, 3408680, 4090416, 5113020, 6817360, 10226040, 20452080]

約数ペア:

[(1, 20452080), (2, 10226040), (3, 6817360), (4, 5113020), (5, 4090416), (6, 3408680), (8, 2556510), (10, 2045208), (11, 1859280), (12, 1704340), (15, 1363472), (16, 1278255), (20, 1022604), (22, 929640), (24, 852170), (30, 681736), (33, 619760), (40, 511302), (44, 464820), (48, 426085), (55, 371856), (60, 340868), (61, 335280), (66, 309880), (80, 255651), (88, 232410), (110, 185928), (120, 170434), (122, 167640), (127, 161040), (132, 154940), (165, 123952), (176, 116205), (183, 111760), (220, 92964), (240, 85217), (244, 83820), (254, 80520), (264, 77470), (305, 67056), (330, 61976), (366, 55880), (381, 53680), (440, 46482), (488, 41910), (508, 40260), (528, 38735), (610, 33528), (635, 32208), (660, 30988), (671, 30480), (732, 27940), (762, 26840), (880, 23241), (915, 22352), (976, 20955), (1016, 20130), (1220, 16764), (1270, 16104), (1320, 15494), (1342, 15240), (1397, 14640), (1464, 13970), (1524, 13420), (1830, 11176), (1905, 10736), (2013, 10160), (2032, 10065), (2440, 8382), (2540, 8052), (2640, 7747), (2684, 7620), (2794, 7320), (2928, 6985), (3048, 6710), (3355, 6096), (3660, 5588), (3810, 5368), (4026, 5080), (4191, 4880)]