51643960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{439}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 124027200

約数和(自身を除く): 72383240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 173, 340, 346, 439, 680, 692, 865, 878, 1384, 1730, 1756, 2195, 2941, 3460, 3512, 4390, 5882, 6920, 7463, 8780, 11764, 14705, 14926, 17560, 23528, 29410, 29852, 37315, 58820, 59704, 74630, 75947, 117640, 149260, 151894, 298520, 303788, 379735, 607576, 759470, 1291099, 1518940, 2582198, 3037880, 5164396, 6455495, 10328792, 12910990, 25821980, 51643960]

約数ペア:

[(1, 51643960), (2, 25821980), (4, 12910990), (5, 10328792), (8, 6455495), (10, 5164396), (17, 3037880), (20, 2582198), (34, 1518940), (40, 1291099), (68, 759470), (85, 607576), (136, 379735), (170, 303788), (173, 298520), (340, 151894), (346, 149260), (439, 117640), (680, 75947), (692, 74630), (865, 59704), (878, 58820), (1384, 37315), (1730, 29852), (1756, 29410), (2195, 23528), (2941, 17560), (3460, 14926), (3512, 14705), (4390, 11764), (5882, 8780), (6920, 7463)]