20870430720

素因数分解:

$2^{15}\times 3^1\times 5^1\times {\mathrm{42461}}^1$

素因数の和:42499

約数の個数: 128

約数和(自身を含む): 66785932080

約数和(自身を除く): 45915501360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1024, 1280, 1536, 1920, 2048, 2560, 3072, 3840, 4096, 5120, 6144, 7680, 8192, 10240, 12288, 15360, 16384, 20480, 24576, 30720, 32768, 40960, 42461, 49152, 61440, 81920, 84922, 98304, 122880, 127383, 163840, 169844, 212305, 245760, 254766, 339688, 424610, 491520, 509532, 636915, 679376, 849220, 1019064, 1273830, 1358752, 1698440, 2038128, 2547660, 2717504, 3396880, 4076256, 5095320, 5435008, 6793760, 8152512, 10190640, 10870016, 13587520, 16305024, 20381280, 21740032, 27175040, 32610048, 40762560, 43480064, 54350080, 65220096, 81525120, 86960128, 108700160, 130440192, 163050240, 173920256, 217400320, 260880384, 326100480, 347840512, 434800640, 521760768, 652200960, 695681024, 869601280, 1043521536, 1304401920, 1391362048, 1739202560, 2087043072, 2608803840, 3478405120, 4174086144, 5217607680, 6956810240, 10435215360, 20870430720]

約数ペア:

[(1, 20870430720), (2, 10435215360), (3, 6956810240), (4, 5217607680), (5, 4174086144), (6, 3478405120), (8, 2608803840), (10, 2087043072), (12, 1739202560), (15, 1391362048), (16, 1304401920), (20, 1043521536), (24, 869601280), (30, 695681024), (32, 652200960), (40, 521760768), (48, 434800640), (60, 347840512), (64, 326100480), (80, 260880384), (96, 217400320), (120, 173920256), (128, 163050240), (160, 130440192), (192, 108700160), (240, 86960128), (256, 81525120), (320, 65220096), (384, 54350080), (480, 43480064), (512, 40762560), (640, 32610048), (768, 27175040), (960, 21740032), (1024, 20381280), (1280, 16305024), (1536, 13587520), (1920, 10870016), (2048, 10190640), (2560, 8152512), (3072, 6793760), (3840, 5435008), (4096, 5095320), (5120, 4076256), (6144, 3396880), (7680, 2717504), (8192, 2547660), (10240, 2038128), (12288, 1698440), (15360, 1358752), (16384, 1273830), (20480, 1019064), (24576, 849220), (30720, 679376), (32768, 636915), (40960, 509532), (42461, 491520), (49152, 424610), (61440, 339688), (81920, 254766), (84922, 245760), (98304, 212305), (122880, 169844), (127383, 163840)]