1940851480

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1\times {\mathrm{1753}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 4432708800

約数和(自身を除く): 2491857320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 311, 356, 445, 622, 712, 890, 1244, 1555, 1753, 1780, 2488, 3110, 3506, 3560, 6220, 7012, 8765, 12440, 14024, 17530, 27679, 35060, 55358, 70120, 110716, 138395, 156017, 221432, 276790, 312034, 545183, 553580, 624068, 780085, 1090366, 1107160, 1248136, 1560170, 2180732, 2725915, 3120340, 4361464, 5451830, 6240680, 10903660, 21807320, 48521287, 97042574, 194085148, 242606435, 388170296, 485212870, 970425740, 1940851480]

約数ペア:

[(1, 1940851480), (2, 970425740), (4, 485212870), (5, 388170296), (8, 242606435), (10, 194085148), (20, 97042574), (40, 48521287), (89, 21807320), (178, 10903660), (311, 6240680), (356, 5451830), (445, 4361464), (622, 3120340), (712, 2725915), (890, 2180732), (1244, 1560170), (1555, 1248136), (1753, 1107160), (1780, 1090366), (2488, 780085), (3110, 624068), (3506, 553580), (3560, 545183), (6220, 312034), (7012, 276790), (8765, 221432), (12440, 156017), (14024, 138395), (17530, 110716), (27679, 70120), (35060, 55358)]