661121280

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{57389}}^1$

素因数の和:57416

約数の個数: 108

約数和(自身を含む): 2287450620

約数和(自身を除く): 1626329340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1920, 2304, 2880, 3840, 5760, 11520, 57389, 114778, 172167, 229556, 286945, 344334, 459112, 516501, 573890, 688668, 860835, 918224, 1033002, 1147780, 1377336, 1721670, 1836448, 2066004, 2295560, 2582505, 2754672, 3443340, 3672896, 4132008, 4591120, 5165010, 5509344, 6886680, 7345792, 8264016, 9182240, 10330020, 11018688, 13773360, 14691584, 16528032, 18364480, 20660040, 22037376, 27546720, 33056064, 36728960, 41320080, 44074752, 55093440, 66112128, 73457920, 82640160, 110186880, 132224256, 165280320, 220373760, 330560640, 661121280]

約数ペア:

[(1, 661121280), (2, 330560640), (3, 220373760), (4, 165280320), (5, 132224256), (6, 110186880), (8, 82640160), (9, 73457920), (10, 66112128), (12, 55093440), (15, 44074752), (16, 41320080), (18, 36728960), (20, 33056064), (24, 27546720), (30, 22037376), (32, 20660040), (36, 18364480), (40, 16528032), (45, 14691584), (48, 13773360), (60, 11018688), (64, 10330020), (72, 9182240), (80, 8264016), (90, 7345792), (96, 6886680), (120, 5509344), (128, 5165010), (144, 4591120), (160, 4132008), (180, 3672896), (192, 3443340), (240, 2754672), (256, 2582505), (288, 2295560), (320, 2066004), (360, 1836448), (384, 1721670), (480, 1377336), (576, 1147780), (640, 1033002), (720, 918224), (768, 860835), (960, 688668), (1152, 573890), (1280, 516501), (1440, 459112), (1920, 344334), (2304, 286945), (2880, 229556), (3840, 172167), (5760, 114778), (11520, 57389)]