123435520

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3709}}^1$

素因数の和:3745

約数の個数: 80

約数和(自身を含む): 318807720

約数和(自身を除く): 195372200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 832, 1040, 1280, 1664, 2080, 2560, 3328, 3709, 4160, 6656, 7418, 8320, 14836, 16640, 18545, 29672, 33280, 37090, 48217, 59344, 74180, 96434, 118688, 148360, 192868, 237376, 241085, 296720, 385736, 474752, 482170, 593440, 771472, 949504, 964340, 1186880, 1542944, 1899008, 1928680, 2373760, 3085888, 3857360, 4747520, 6171776, 7714720, 9495040, 12343552, 15429440, 24687104, 30858880, 61717760, 123435520]

約数ペア:

[(1, 123435520), (2, 61717760), (4, 30858880), (5, 24687104), (8, 15429440), (10, 12343552), (13, 9495040), (16, 7714720), (20, 6171776), (26, 4747520), (32, 3857360), (40, 3085888), (52, 2373760), (64, 1928680), (65, 1899008), (80, 1542944), (104, 1186880), (128, 964340), (130, 949504), (160, 771472), (208, 593440), (256, 482170), (260, 474752), (320, 385736), (416, 296720), (512, 241085), (520, 237376), (640, 192868), (832, 148360), (1040, 118688), (1280, 96434), (1664, 74180), (2080, 59344), (2560, 48217), (3328, 37090), (3709, 33280), (4160, 29672), (6656, 18545), (7418, 16640), (8320, 14836)]