221758440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3547}}^1$

素因数の和:4082

約数の個数: 64

約数和(自身を含む): 666740160

約数和(自身を除く): 444981720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 521, 1042, 1563, 2084, 2605, 3126, 3547, 4168, 5210, 6252, 7094, 7815, 10420, 10641, 12504, 14188, 15630, 17735, 20840, 21282, 28376, 31260, 35470, 42564, 53205, 62520, 70940, 85128, 106410, 141880, 212820, 425640, 1847987, 3695974, 5543961, 7391948, 9239935, 11087922, 14783896, 18479870, 22175844, 27719805, 36959740, 44351688, 55439610, 73919480, 110879220, 221758440]

約数ペア:

[(1, 221758440), (2, 110879220), (3, 73919480), (4, 55439610), (5, 44351688), (6, 36959740), (8, 27719805), (10, 22175844), (12, 18479870), (15, 14783896), (20, 11087922), (24, 9239935), (30, 7391948), (40, 5543961), (60, 3695974), (120, 1847987), (521, 425640), (1042, 212820), (1563, 141880), (2084, 106410), (2605, 85128), (3126, 70940), (3547, 62520), (4168, 53205), (5210, 42564), (6252, 35470), (7094, 31260), (7815, 28376), (10420, 21282), (10641, 20840), (12504, 17735), (14188, 15630)]