401244160

素因数分解:

$2^{15}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 128

約数和(自身を含む): 1006617600

約数和(自身を除く): 605373440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 79, 80, 124, 128, 155, 158, 160, 248, 256, 310, 316, 320, 395, 496, 512, 620, 632, 640, 790, 992, 1024, 1240, 1264, 1280, 1580, 1984, 2048, 2449, 2480, 2528, 2560, 3160, 3968, 4096, 4898, 4960, 5056, 5120, 6320, 7936, 8192, 9796, 9920, 10112, 10240, 12245, 12640, 15872, 16384, 19592, 19840, 20224, 20480, 24490, 25280, 31744, 32768, 39184, 39680, 40448, 40960, 48980, 50560, 63488, 78368, 79360, 80896, 81920, 97960, 101120, 126976, 156736, 158720, 161792, 163840, 195920, 202240, 253952, 313472, 317440, 323584, 391840, 404480, 507904, 626944, 634880, 647168, 783680, 808960, 1015808, 1253888, 1269760, 1294336, 1567360, 1617920, 2507776, 2539520, 2588672, 3134720, 3235840, 5015552, 5079040, 6269440, 6471680, 10031104, 12538880, 12943360, 20062208, 25077760, 40124416, 50155520, 80248832, 100311040, 200622080, 401244160]

約数ペア:

[(1, 401244160), (2, 200622080), (4, 100311040), (5, 80248832), (8, 50155520), (10, 40124416), (16, 25077760), (20, 20062208), (31, 12943360), (32, 12538880), (40, 10031104), (62, 6471680), (64, 6269440), (79, 5079040), (80, 5015552), (124, 3235840), (128, 3134720), (155, 2588672), (158, 2539520), (160, 2507776), (248, 1617920), (256, 1567360), (310, 1294336), (316, 1269760), (320, 1253888), (395, 1015808), (496, 808960), (512, 783680), (620, 647168), (632, 634880), (640, 626944), (790, 507904), (992, 404480), (1024, 391840), (1240, 323584), (1264, 317440), (1280, 313472), (1580, 253952), (1984, 202240), (2048, 195920), (2449, 163840), (2480, 161792), (2528, 158720), (2560, 156736), (3160, 126976), (3968, 101120), (4096, 97960), (4898, 81920), (4960, 80896), (5056, 79360), (5120, 78368), (6320, 63488), (7936, 50560), (8192, 48980), (9796, 40960), (9920, 40448), (10112, 39680), (10240, 39184), (12245, 32768), (12640, 31744), (15872, 25280), (16384, 24490), (19592, 20480), (19840, 20224)]