40475680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:602

約数の個数: 96

約数和(自身を含む): 111041280

約数和(自身を除く): 70565600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 71, 80, 112, 140, 142, 160, 224, 280, 284, 355, 497, 509, 560, 568, 710, 994, 1018, 1120, 1136, 1420, 1988, 2036, 2272, 2485, 2545, 2840, 3563, 3976, 4072, 4970, 5090, 5680, 7126, 7952, 8144, 9940, 10180, 11360, 14252, 15904, 16288, 17815, 19880, 20360, 28504, 35630, 36139, 39760, 40720, 57008, 71260, 72278, 79520, 81440, 114016, 142520, 144556, 180695, 252973, 285040, 289112, 361390, 505946, 570080, 578224, 722780, 1011892, 1156448, 1264865, 1445560, 2023784, 2529730, 2891120, 4047568, 5059460, 5782240, 8095136, 10118920, 20237840, 40475680]

約数ペア:

[(1, 40475680), (2, 20237840), (4, 10118920), (5, 8095136), (7, 5782240), (8, 5059460), (10, 4047568), (14, 2891120), (16, 2529730), (20, 2023784), (28, 1445560), (32, 1264865), (35, 1156448), (40, 1011892), (56, 722780), (70, 578224), (71, 570080), (80, 505946), (112, 361390), (140, 289112), (142, 285040), (160, 252973), (224, 180695), (280, 144556), (284, 142520), (355, 114016), (497, 81440), (509, 79520), (560, 72278), (568, 71260), (710, 57008), (994, 40720), (1018, 39760), (1120, 36139), (1136, 35630), (1420, 28504), (1988, 20360), (2036, 19880), (2272, 17815), (2485, 16288), (2545, 15904), (2840, 14252), (3563, 11360), (3976, 10180), (4072, 9940), (4970, 8144), (5090, 7952), (5680, 7126)]