20081880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:650

約数の個数: 192

約数和(自身を含む): 80458560

約数和(自身を除く): 60376680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 52, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 117, 120, 126, 130, 140, 156, 168, 180, 182, 195, 210, 234, 252, 260, 273, 280, 312, 315, 360, 364, 390, 420, 455, 468, 504, 520, 546, 585, 613, 630, 728, 780, 819, 840, 910, 936, 1092, 1170, 1226, 1260, 1365, 1560, 1638, 1820, 1839, 2184, 2340, 2452, 2520, 2730, 3065, 3276, 3640, 3678, 4095, 4291, 4680, 4904, 5460, 5517, 6130, 6552, 7356, 7969, 8190, 8582, 9195, 10920, 11034, 12260, 12873, 14712, 15938, 16380, 17164, 18390, 21455, 22068, 23907, 24520, 25746, 27585, 31876, 32760, 34328, 36780, 38619, 39845, 42910, 44136, 47814, 51492, 55170, 55783, 63752, 64365, 71721, 73560, 77238, 79690, 85820, 95628, 102984, 110340, 111566, 119535, 128730, 143442, 154476, 159380, 167349, 171640, 191256, 193095, 220680, 223132, 239070, 257460, 278915, 286884, 308952, 318760, 334698, 358605, 386190, 446264, 478140, 502047, 514920, 557830, 573768, 669396, 717210, 772380, 836745, 956280, 1004094, 1115660, 1338792, 1434420, 1544760, 1673490, 2008188, 2231320, 2510235, 2868840, 3346980, 4016376, 5020470, 6693960, 10040940, 20081880]

約数ペア:

[(1, 20081880), (2, 10040940), (3, 6693960), (4, 5020470), (5, 4016376), (6, 3346980), (7, 2868840), (8, 2510235), (9, 2231320), (10, 2008188), (12, 1673490), (13, 1544760), (14, 1434420), (15, 1338792), (18, 1115660), (20, 1004094), (21, 956280), (24, 836745), (26, 772380), (28, 717210), (30, 669396), (35, 573768), (36, 557830), (39, 514920), (40, 502047), (42, 478140), (45, 446264), (52, 386190), (56, 358605), (60, 334698), (63, 318760), (65, 308952), (70, 286884), (72, 278915), (78, 257460), (84, 239070), (90, 223132), (91, 220680), (104, 193095), (105, 191256), (117, 171640), (120, 167349), (126, 159380), (130, 154476), (140, 143442), (156, 128730), (168, 119535), (180, 111566), (182, 110340), (195, 102984), (210, 95628), (234, 85820), (252, 79690), (260, 77238), (273, 73560), (280, 71721), (312, 64365), (315, 63752), (360, 55783), (364, 55170), (390, 51492), (420, 47814), (455, 44136), (468, 42910), (504, 39845), (520, 38619), (546, 36780), (585, 34328), (613, 32760), (630, 31876), (728, 27585), (780, 25746), (819, 24520), (840, 23907), (910, 22068), (936, 21455), (1092, 18390), (1170, 17164), (1226, 16380), (1260, 15938), (1365, 14712), (1560, 12873), (1638, 12260), (1820, 11034), (1839, 10920), (2184, 9195), (2340, 8582), (2452, 8190), (2520, 7969), (2730, 7356), (3065, 6552), (3276, 6130), (3640, 5517), (3678, 5460), (4095, 4904), (4291, 4680)]