20078080

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 160

約数和(自身を含む): 56567808

約数和(自身を除く): 36489728

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 31, 32, 40, 44, 46, 55, 62, 64, 80, 88, 92, 110, 115, 124, 128, 155, 160, 176, 184, 220, 230, 248, 253, 256, 310, 320, 341, 352, 368, 440, 460, 496, 506, 512, 620, 640, 682, 704, 713, 736, 880, 920, 992, 1012, 1240, 1265, 1280, 1364, 1408, 1426, 1472, 1705, 1760, 1840, 1984, 2024, 2480, 2530, 2560, 2728, 2816, 2852, 2944, 3410, 3520, 3565, 3680, 3968, 4048, 4960, 5060, 5456, 5632, 5704, 5888, 6820, 7040, 7130, 7360, 7843, 7936, 8096, 9920, 10120, 10912, 11408, 11776, 13640, 14080, 14260, 14720, 15686, 15872, 16192, 19840, 20240, 21824, 22816, 27280, 28160, 28520, 29440, 31372, 32384, 39215, 39680, 40480, 43648, 45632, 54560, 57040, 58880, 62744, 64768, 78430, 79360, 80960, 87296, 91264, 109120, 114080, 125488, 129536, 156860, 161920, 174592, 182528, 218240, 228160, 250976, 313720, 323840, 365056, 436480, 456320, 501952, 627440, 647680, 872960, 912640, 1003904, 1254880, 1825280, 2007808, 2509760, 4015616, 5019520, 10039040, 20078080]

約数ペア:

[(1, 20078080), (2, 10039040), (4, 5019520), (5, 4015616), (8, 2509760), (10, 2007808), (11, 1825280), (16, 1254880), (20, 1003904), (22, 912640), (23, 872960), (31, 647680), (32, 627440), (40, 501952), (44, 456320), (46, 436480), (55, 365056), (62, 323840), (64, 313720), (80, 250976), (88, 228160), (92, 218240), (110, 182528), (115, 174592), (124, 161920), (128, 156860), (155, 129536), (160, 125488), (176, 114080), (184, 109120), (220, 91264), (230, 87296), (248, 80960), (253, 79360), (256, 78430), (310, 64768), (320, 62744), (341, 58880), (352, 57040), (368, 54560), (440, 45632), (460, 43648), (496, 40480), (506, 39680), (512, 39215), (620, 32384), (640, 31372), (682, 29440), (704, 28520), (713, 28160), (736, 27280), (880, 22816), (920, 21824), (992, 20240), (1012, 19840), (1240, 16192), (1265, 15872), (1280, 15686), (1364, 14720), (1408, 14260), (1426, 14080), (1472, 13640), (1705, 11776), (1760, 11408), (1840, 10912), (1984, 10120), (2024, 9920), (2480, 8096), (2530, 7936), (2560, 7843), (2728, 7360), (2816, 7130), (2852, 7040), (2944, 6820), (3410, 5888), (3520, 5704), (3565, 5632), (3680, 5456), (3968, 5060), (4048, 4960)]