392990720

素因数分解:

$2^{12}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:679

約数の個数: 104

約数和(自身を含む): 975056640

約数和(自身を除く): 582065920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 619, 620, 640, 992, 1024, 1238, 1240, 1280, 1984, 2048, 2476, 2480, 2560, 3095, 3968, 4096, 4952, 4960, 5120, 6190, 7936, 9904, 9920, 10240, 12380, 15872, 19189, 19808, 19840, 20480, 24760, 31744, 38378, 39616, 39680, 49520, 63488, 76756, 79232, 79360, 95945, 99040, 126976, 153512, 158464, 158720, 191890, 198080, 307024, 316928, 317440, 383780, 396160, 614048, 633856, 634880, 767560, 792320, 1228096, 1267712, 1535120, 1584640, 2456192, 2535424, 3070240, 3169280, 4912384, 6140480, 6338560, 9824768, 12280960, 12677120, 19649536, 24561920, 39299072, 49123840, 78598144, 98247680, 196495360, 392990720]

約数ペア:

[(1, 392990720), (2, 196495360), (4, 98247680), (5, 78598144), (8, 49123840), (10, 39299072), (16, 24561920), (20, 19649536), (31, 12677120), (32, 12280960), (40, 9824768), (62, 6338560), (64, 6140480), (80, 4912384), (124, 3169280), (128, 3070240), (155, 2535424), (160, 2456192), (248, 1584640), (256, 1535120), (310, 1267712), (320, 1228096), (496, 792320), (512, 767560), (619, 634880), (620, 633856), (640, 614048), (992, 396160), (1024, 383780), (1238, 317440), (1240, 316928), (1280, 307024), (1984, 198080), (2048, 191890), (2476, 158720), (2480, 158464), (2560, 153512), (3095, 126976), (3968, 99040), (4096, 95945), (4952, 79360), (4960, 79232), (5120, 76756), (6190, 63488), (7936, 49520), (9904, 39680), (9920, 39616), (10240, 38378), (12380, 31744), (15872, 24760), (19189, 20480), (19808, 19840)]