154910720

素因数分解:

$2^{14}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:125

約数の個数: 120

約数和(自身を含む): 390058368

約数和(自身を除く): 235147648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 64, 80, 122, 124, 128, 155, 160, 244, 248, 256, 305, 310, 320, 488, 496, 512, 610, 620, 640, 976, 992, 1024, 1220, 1240, 1280, 1891, 1952, 1984, 2048, 2440, 2480, 2560, 3782, 3904, 3968, 4096, 4880, 4960, 5120, 7564, 7808, 7936, 8192, 9455, 9760, 9920, 10240, 15128, 15616, 15872, 16384, 18910, 19520, 19840, 20480, 30256, 31232, 31744, 37820, 39040, 39680, 40960, 60512, 62464, 63488, 75640, 78080, 79360, 81920, 121024, 124928, 126976, 151280, 156160, 158720, 242048, 249856, 253952, 302560, 312320, 317440, 484096, 499712, 507904, 605120, 624640, 634880, 968192, 999424, 1210240, 1249280, 1269760, 1936384, 2420480, 2498560, 2539520, 3872768, 4840960, 4997120, 7745536, 9681920, 15491072, 19363840, 30982144, 38727680, 77455360, 154910720]

約数ペア:

[(1, 154910720), (2, 77455360), (4, 38727680), (5, 30982144), (8, 19363840), (10, 15491072), (16, 9681920), (20, 7745536), (31, 4997120), (32, 4840960), (40, 3872768), (61, 2539520), (62, 2498560), (64, 2420480), (80, 1936384), (122, 1269760), (124, 1249280), (128, 1210240), (155, 999424), (160, 968192), (244, 634880), (248, 624640), (256, 605120), (305, 507904), (310, 499712), (320, 484096), (488, 317440), (496, 312320), (512, 302560), (610, 253952), (620, 249856), (640, 242048), (976, 158720), (992, 156160), (1024, 151280), (1220, 126976), (1240, 124928), (1280, 121024), (1891, 81920), (1952, 79360), (1984, 78080), (2048, 75640), (2440, 63488), (2480, 62464), (2560, 60512), (3782, 40960), (3904, 39680), (3968, 39040), (4096, 37820), (4880, 31744), (4960, 31232), (5120, 30256), (7564, 20480), (7808, 19840), (7936, 19520), (8192, 18910), (9455, 16384), (9760, 15872), (9920, 15616), (10240, 15128)]