19845120

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:68

約数の個数: 208

約数和(自身を含む): 70770240

約数和(自身を除く): 50925120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 32, 34, 38, 40, 48, 51, 57, 60, 64, 68, 76, 80, 85, 95, 96, 102, 114, 120, 128, 136, 152, 160, 170, 190, 192, 204, 228, 240, 255, 256, 272, 285, 304, 320, 323, 340, 380, 384, 408, 456, 480, 510, 512, 544, 570, 608, 640, 646, 680, 760, 768, 816, 912, 960, 969, 1020, 1024, 1088, 1140, 1216, 1280, 1292, 1360, 1520, 1536, 1615, 1632, 1824, 1920, 1938, 2040, 2048, 2176, 2280, 2432, 2560, 2584, 2720, 3040, 3072, 3230, 3264, 3648, 3840, 3876, 4080, 4096, 4352, 4560, 4845, 4864, 5120, 5168, 5440, 6080, 6144, 6460, 6528, 7296, 7680, 7752, 8160, 8704, 9120, 9690, 9728, 10240, 10336, 10880, 12160, 12288, 12920, 13056, 14592, 15360, 15504, 16320, 17408, 18240, 19380, 19456, 20480, 20672, 21760, 24320, 25840, 26112, 29184, 30720, 31008, 32640, 34816, 36480, 38760, 38912, 41344, 43520, 48640, 51680, 52224, 58368, 61440, 62016, 65280, 69632, 72960, 77520, 77824, 82688, 87040, 97280, 103360, 104448, 116736, 124032, 130560, 145920, 155040, 165376, 174080, 194560, 206720, 208896, 233472, 248064, 261120, 291840, 310080, 330752, 348160, 389120, 413440, 496128, 522240, 583680, 620160, 661504, 826880, 992256, 1044480, 1167360, 1240320, 1323008, 1653760, 1984512, 2480640, 3307520, 3969024, 4961280, 6615040, 9922560, 19845120]

約数ペア:

[(1, 19845120), (2, 9922560), (3, 6615040), (4, 4961280), (5, 3969024), (6, 3307520), (8, 2480640), (10, 1984512), (12, 1653760), (15, 1323008), (16, 1240320), (17, 1167360), (19, 1044480), (20, 992256), (24, 826880), (30, 661504), (32, 620160), (34, 583680), (38, 522240), (40, 496128), (48, 413440), (51, 389120), (57, 348160), (60, 330752), (64, 310080), (68, 291840), (76, 261120), (80, 248064), (85, 233472), (95, 208896), (96, 206720), (102, 194560), (114, 174080), (120, 165376), (128, 155040), (136, 145920), (152, 130560), (160, 124032), (170, 116736), (190, 104448), (192, 103360), (204, 97280), (228, 87040), (240, 82688), (255, 77824), (256, 77520), (272, 72960), (285, 69632), (304, 65280), (320, 62016), (323, 61440), (340, 58368), (380, 52224), (384, 51680), (408, 48640), (456, 43520), (480, 41344), (510, 38912), (512, 38760), (544, 36480), (570, 34816), (608, 32640), (640, 31008), (646, 30720), (680, 29184), (760, 26112), (768, 25840), (816, 24320), (912, 21760), (960, 20672), (969, 20480), (1020, 19456), (1024, 19380), (1088, 18240), (1140, 17408), (1216, 16320), (1280, 15504), (1292, 15360), (1360, 14592), (1520, 13056), (1536, 12920), (1615, 12288), (1632, 12160), (1824, 10880), (1920, 10336), (1938, 10240), (2040, 9728), (2048, 9690), (2176, 9120), (2280, 8704), (2432, 8160), (2560, 7752), (2584, 7680), (2720, 7296), (3040, 6528), (3072, 6460), (3230, 6144), (3264, 6080), (3648, 5440), (3840, 5168), (3876, 5120), (4080, 4864), (4096, 4845), (4352, 4560)]