20880480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1061}}^1$

素因数の和:1120

約数の個数: 96

約数和(自身を含む): 67441248

約数和(自身を除く): 46560768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 80, 82, 96, 120, 123, 160, 164, 205, 240, 246, 328, 410, 480, 492, 615, 656, 820, 984, 1061, 1230, 1312, 1640, 1968, 2122, 2460, 3183, 3280, 3936, 4244, 4920, 5305, 6366, 6560, 8488, 9840, 10610, 12732, 15915, 16976, 19680, 21220, 25464, 31830, 33952, 42440, 43501, 50928, 63660, 84880, 87002, 101856, 127320, 130503, 169760, 174004, 217505, 254640, 261006, 348008, 435010, 509280, 522012, 652515, 696016, 870020, 1044024, 1305030, 1392032, 1740040, 2088048, 2610060, 3480080, 4176096, 5220120, 6960160, 10440240, 20880480]

約数ペア:

[(1, 20880480), (2, 10440240), (3, 6960160), (4, 5220120), (5, 4176096), (6, 3480080), (8, 2610060), (10, 2088048), (12, 1740040), (15, 1392032), (16, 1305030), (20, 1044024), (24, 870020), (30, 696016), (32, 652515), (40, 522012), (41, 509280), (48, 435010), (60, 348008), (80, 261006), (82, 254640), (96, 217505), (120, 174004), (123, 169760), (160, 130503), (164, 127320), (205, 101856), (240, 87002), (246, 84880), (328, 63660), (410, 50928), (480, 43501), (492, 42440), (615, 33952), (656, 31830), (820, 25464), (984, 21220), (1061, 19680), (1230, 16976), (1312, 15915), (1640, 12732), (1968, 10610), (2122, 9840), (2460, 8488), (3183, 6560), (3280, 6366), (3936, 5305), (4244, 4920)]