189975680

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{919}}^1$

素因数の和:974

約数の個数: 128

約数和(自身を含む): 506736000

約数和(自身を除く): 316760320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 152, 160, 170, 190, 272, 304, 320, 323, 340, 380, 544, 608, 640, 646, 680, 760, 919, 1088, 1216, 1292, 1360, 1520, 1615, 1838, 2176, 2432, 2584, 2720, 3040, 3230, 3676, 4595, 5168, 5440, 6080, 6460, 7352, 9190, 10336, 10880, 12160, 12920, 14704, 15623, 17461, 18380, 20672, 25840, 29408, 31246, 34922, 36760, 41344, 51680, 58816, 62492, 69844, 73520, 78115, 87305, 103360, 117632, 124984, 139688, 147040, 156230, 174610, 206720, 249968, 279376, 294080, 296837, 312460, 349220, 499936, 558752, 588160, 593674, 624920, 698440, 999872, 1117504, 1187348, 1249840, 1396880, 1484185, 1999744, 2235008, 2374696, 2499680, 2793760, 2968370, 4749392, 4999360, 5587520, 5936740, 9498784, 9998720, 11175040, 11873480, 18997568, 23746960, 37995136, 47493920, 94987840, 189975680]

約数ペア:

[(1, 189975680), (2, 94987840), (4, 47493920), (5, 37995136), (8, 23746960), (10, 18997568), (16, 11873480), (17, 11175040), (19, 9998720), (20, 9498784), (32, 5936740), (34, 5587520), (38, 4999360), (40, 4749392), (64, 2968370), (68, 2793760), (76, 2499680), (80, 2374696), (85, 2235008), (95, 1999744), (128, 1484185), (136, 1396880), (152, 1249840), (160, 1187348), (170, 1117504), (190, 999872), (272, 698440), (304, 624920), (320, 593674), (323, 588160), (340, 558752), (380, 499936), (544, 349220), (608, 312460), (640, 296837), (646, 294080), (680, 279376), (760, 249968), (919, 206720), (1088, 174610), (1216, 156230), (1292, 147040), (1360, 139688), (1520, 124984), (1615, 117632), (1838, 103360), (2176, 87305), (2432, 78115), (2584, 73520), (2720, 69844), (3040, 62492), (3230, 58816), (3676, 51680), (4595, 41344), (5168, 36760), (5440, 34922), (6080, 31246), (6460, 29408), (7352, 25840), (9190, 20672), (10336, 18380), (10880, 17461), (12160, 15623), (12920, 14704)]