258399320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{379999}}^1$

素因数の和:380027

約数の個数: 32

約数和(自身を含む): 615600000

約数和(自身を除く): 357200680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 379999, 759998, 1519996, 1899995, 3039992, 3799990, 6459983, 7599980, 12919966, 15199960, 25839932, 32299915, 51679864, 64599830, 129199660, 258399320]

約数ペア:

[(1, 258399320), (2, 129199660), (4, 64599830), (5, 51679864), (8, 32299915), (10, 25839932), (17, 15199960), (20, 12919966), (34, 7599980), (40, 6459983), (68, 3799990), (85, 3039992), (136, 1899995), (170, 1519996), (340, 759998), (680, 379999)]