251319040

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{4007}}^1$

素因数の和:4042

約数の個数: 108

約数和(自身を含む): 700446096

約数和(自身を除く): 449127056

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 3136, 3920, 4007, 4480, 6272, 7840, 8014, 8960, 12544, 15680, 16028, 20035, 28049, 31360, 32056, 40070, 56098, 62720, 64112, 80140, 112196, 128224, 140245, 160280, 196343, 224392, 256448, 280490, 320560, 392686, 448784, 512896, 560980, 641120, 785372, 897568, 981715, 1025792, 1121960, 1282240, 1570744, 1795136, 1963430, 2243920, 2564480, 3141488, 3590272, 3926860, 4487840, 5128960, 6282976, 7180544, 7853720, 8975680, 12565952, 15707440, 17951360, 25131904, 31414880, 35902720, 50263808, 62829760, 125659520, 251319040]

約数ペア:

[(1, 251319040), (2, 125659520), (4, 62829760), (5, 50263808), (7, 35902720), (8, 31414880), (10, 25131904), (14, 17951360), (16, 15707440), (20, 12565952), (28, 8975680), (32, 7853720), (35, 7180544), (40, 6282976), (49, 5128960), (56, 4487840), (64, 3926860), (70, 3590272), (80, 3141488), (98, 2564480), (112, 2243920), (128, 1963430), (140, 1795136), (160, 1570744), (196, 1282240), (224, 1121960), (245, 1025792), (256, 981715), (280, 897568), (320, 785372), (392, 641120), (448, 560980), (490, 512896), (560, 448784), (640, 392686), (784, 320560), (896, 280490), (980, 256448), (1120, 224392), (1280, 196343), (1568, 160280), (1792, 140245), (1960, 128224), (2240, 112196), (3136, 80140), (3920, 64112), (4007, 62720), (4480, 56098), (6272, 40070), (7840, 32056), (8014, 31360), (8960, 28049), (12544, 20035), (15680, 16028)]