128038960

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{367}}^1$

素因数の和:483

約数の個数: 120

約数和(自身を含む): 351138240

約数和(自身を除く): 223099280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 89, 98, 112, 140, 178, 196, 245, 280, 356, 367, 392, 445, 490, 560, 623, 712, 734, 784, 890, 980, 1246, 1424, 1468, 1780, 1835, 1960, 2492, 2569, 2936, 3115, 3560, 3670, 3920, 4361, 4984, 5138, 5872, 6230, 7120, 7340, 8722, 9968, 10276, 12460, 12845, 14680, 17444, 17983, 20552, 21805, 24920, 25690, 29360, 32663, 34888, 35966, 41104, 43610, 49840, 51380, 65326, 69776, 71932, 87220, 89915, 102760, 130652, 143864, 163315, 174440, 179830, 205520, 228641, 261304, 287728, 326630, 348880, 359660, 457282, 522608, 653260, 719320, 914564, 1143205, 1306520, 1438640, 1600487, 1829128, 2286410, 2613040, 3200974, 3658256, 4572820, 6401948, 8002435, 9145640, 12803896, 16004870, 18291280, 25607792, 32009740, 64019480, 128038960]

約数ペア:

[(1, 128038960), (2, 64019480), (4, 32009740), (5, 25607792), (7, 18291280), (8, 16004870), (10, 12803896), (14, 9145640), (16, 8002435), (20, 6401948), (28, 4572820), (35, 3658256), (40, 3200974), (49, 2613040), (56, 2286410), (70, 1829128), (80, 1600487), (89, 1438640), (98, 1306520), (112, 1143205), (140, 914564), (178, 719320), (196, 653260), (245, 522608), (280, 457282), (356, 359660), (367, 348880), (392, 326630), (445, 287728), (490, 261304), (560, 228641), (623, 205520), (712, 179830), (734, 174440), (784, 163315), (890, 143864), (980, 130652), (1246, 102760), (1424, 89915), (1468, 87220), (1780, 71932), (1835, 69776), (1960, 65326), (2492, 51380), (2569, 49840), (2936, 43610), (3115, 41104), (3560, 35966), (3670, 34888), (3920, 32663), (4361, 29360), (4984, 25690), (5138, 24920), (5872, 21805), (6230, 20552), (7120, 17983), (7340, 17444), (8722, 14680), (9968, 12845), (10276, 12460)]