621551520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{661}}^1$

素因数の和:1335

約数の個数: 144

約数和(自身を含む): 2127506472

約数和(自身を除く): 1505954952

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, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 653, 661, 720, 1306, 1322, 1440, 1959, 1983, 2612, 2644, 3265, 3305, 3918, 3966, 5224, 5288, 5877, 5949, 6530, 6610, 7836, 7932, 9795, 9915, 10448, 10576, 11754, 11898, 13060, 13220, 15672, 15864, 19590, 19830, 20896, 21152, 23508, 23796, 26120, 26440, 29385, 29745, 31344, 31728, 39180, 39660, 47016, 47592, 52240, 52880, 58770, 59490, 62688, 63456, 78360, 79320, 94032, 95184, 104480, 105760, 117540, 118980, 156720, 158640, 188064, 190368, 235080, 237960, 313440, 317280, 431633, 470160, 475920, 863266, 940320, 951840, 1294899, 1726532, 2158165, 2589798, 3453064, 3884697, 4316330, 5179596, 6474495, 6906128, 7769394, 8632660, 10359192, 12948990, 13812256, 15538788, 17265320, 19423485, 20718384, 25897980, 31077576, 34530640, 38846970, 41436768, 51795960, 62155152, 69061280, 77693940, 103591920, 124310304, 155387880, 207183840, 310775760, 621551520]

約数ペア:

[(1, 621551520), (2, 310775760), (3, 207183840), (4, 155387880), (5, 124310304), (6, 103591920), (8, 77693940), (9, 69061280), (10, 62155152), (12, 51795960), (15, 41436768), (16, 38846970), (18, 34530640), (20, 31077576), (24, 25897980), (30, 20718384), (32, 19423485), (36, 17265320), (40, 15538788), (45, 13812256), (48, 12948990), (60, 10359192), (72, 8632660), (80, 7769394), (90, 6906128), (96, 6474495), (120, 5179596), (144, 4316330), (160, 3884697), (180, 3453064), (240, 2589798), (288, 2158165), (360, 1726532), (480, 1294899), (653, 951840), (661, 940320), (720, 863266), (1306, 475920), (1322, 470160), (1440, 431633), (1959, 317280), (1983, 313440), (2612, 237960), (2644, 235080), (3265, 190368), (3305, 188064), (3918, 158640), (3966, 156720), (5224, 118980), (5288, 117540), (5877, 105760), (5949, 104480), (6530, 95184), (6610, 94032), (7836, 79320), (7932, 78360), (9795, 63456), (9915, 62688), (10448, 59490), (10576, 58770), (11754, 52880), (11898, 52240), (13060, 47592), (13220, 47016), (15672, 39660), (15864, 39180), (19590, 31728), (19830, 31344), (20896, 29745), (21152, 29385), (23508, 26440), (23796, 26120)]