18128440680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{21581477}}^1$

素因数の和:21581498

約数の個数: 64

約数和(自身を含む): 62154656640

約数和(自身を除く): 44026215960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 21581477, 43162954, 64744431, 86325908, 107907385, 129488862, 151070339, 172651816, 215814770, 258977724, 302140678, 323722155, 431629540, 453211017, 517955448, 604281356, 647444310, 755351695, 863259080, 906422034, 1208562712, 1294888620, 1510703390, 1812844068, 2266055085, 2589777240, 3021406780, 3625688136, 4532110170, 6042813560, 9064220340, 18128440680]

約数ペア:

[(1, 18128440680), (2, 9064220340), (3, 6042813560), (4, 4532110170), (5, 3625688136), (6, 3021406780), (7, 2589777240), (8, 2266055085), (10, 1812844068), (12, 1510703390), (14, 1294888620), (15, 1208562712), (20, 906422034), (21, 863259080), (24, 755351695), (28, 647444310), (30, 604281356), (35, 517955448), (40, 453211017), (42, 431629540), (56, 323722155), (60, 302140678), (70, 258977724), (84, 215814770), (105, 172651816), (120, 151070339), (140, 129488862), (168, 107907385), (210, 86325908), (280, 64744431), (420, 43162954), (840, 21581477)]