779632640

素因数分解:

$2^{14}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:371

約数の個数: 120

約数和(自身を含む): 1937709312

約数和(自身を除く): 1158076672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 307, 310, 320, 496, 512, 614, 620, 640, 992, 1024, 1228, 1240, 1280, 1535, 1984, 2048, 2456, 2480, 2560, 3070, 3968, 4096, 4912, 4960, 5120, 6140, 7936, 8192, 9517, 9824, 9920, 10240, 12280, 15872, 16384, 19034, 19648, 19840, 20480, 24560, 31744, 38068, 39296, 39680, 40960, 47585, 49120, 63488, 76136, 78592, 79360, 81920, 95170, 98240, 126976, 152272, 157184, 158720, 190340, 196480, 253952, 304544, 314368, 317440, 380680, 392960, 507904, 609088, 628736, 634880, 761360, 785920, 1218176, 1257472, 1269760, 1522720, 1571840, 2436352, 2514944, 2539520, 3045440, 3143680, 4872704, 5029888, 6090880, 6287360, 9745408, 12181760, 12574720, 19490816, 24363520, 25149440, 38981632, 48727040, 77963264, 97454080, 155926528, 194908160, 389816320, 779632640]

約数ペア:

[(1, 779632640), (2, 389816320), (4, 194908160), (5, 155926528), (8, 97454080), (10, 77963264), (16, 48727040), (20, 38981632), (31, 25149440), (32, 24363520), (40, 19490816), (62, 12574720), (64, 12181760), (80, 9745408), (124, 6287360), (128, 6090880), (155, 5029888), (160, 4872704), (248, 3143680), (256, 3045440), (307, 2539520), (310, 2514944), (320, 2436352), (496, 1571840), (512, 1522720), (614, 1269760), (620, 1257472), (640, 1218176), (992, 785920), (1024, 761360), (1228, 634880), (1240, 628736), (1280, 609088), (1535, 507904), (1984, 392960), (2048, 380680), (2456, 317440), (2480, 314368), (2560, 304544), (3070, 253952), (3968, 196480), (4096, 190340), (4912, 158720), (4960, 157184), (5120, 152272), (6140, 126976), (7936, 98240), (8192, 95170), (9517, 81920), (9824, 79360), (9920, 78592), (10240, 76136), (12280, 63488), (15872, 49120), (16384, 47585), (19034, 40960), (19648, 39680), (19840, 39296), (20480, 38068), (24560, 31744)]